Key takeaways:
- AI writing is detectable not because of one bad word but because of AI patterns — the same formal connectors, vague buzzwords, and predictable openers appearing together.
- Replacing individual words is not enough. The fix is rewriting sentence structure and adding specificity — concrete details, varied rhythm, and a tone that matches your actual reader.
- JustDone's AI Humanizer and Paraphraser both target these patterns directly: the humanizer rewrites at the sentence level, the paraphraser breaks up predictable structure without changing your meaning.
If your essay, blog post, or assignment was flagged as AI-generated, it probably was not one word that gave it away. AI detectors look at patterns across the whole text — sentence rhythm, transition frequency, word choice clusters. This guide lists the most common AI words and phrases by category, explains why each one signals machine-generated text, and gives you specific replacements that actually work.
What Are Common AI Words and Phrases
AI language models are trained to predict the next most probable word. That process produces text that is grammatically correct but statistically average — the same connectors, the same level of formality, the same hedging qualifiers appearing in every other paragraph.
The result is writing that feels like it could have been generated for any topic, by anyone, at any time. No specific examples. No opinion. No variation in tone. Readers and detectors both pick up on this.
The categories below are where the problem concentrates.
Commonly Used AI Phrases: Transition Words to Cut First
These are the words AI uses to link ideas because they are the most common connectors in academic and professional writing. When they appear back-to-back in paragraph after paragraph, they create the mechanical rhythm that identifies AI text.
| AI phrase | Human alternative |
|---|---|
| Moreover | Also, and, on top of that |
| Furthermore | What's more, beyond that, plus |
| Consequently | So, which means, as a result |
| In addition | And, also, there's also |
| Therefore | So, that's why, this means |
| Subsequently | After that, then, next |
| Nevertheless | Still, even so, that said |
| It is worth noting that | Note that, worth knowing |
| As previously mentioned | As we covered, earlier |
| It is important to note that | Just say the point directly |
To fix this is not to avoid all transitions, but to use ones that are specific to what you actually said. For instance, "that's why" connects better than "therefore" because it shows you understand the relationship between your ideas.
Overused AI buzzwords
These words appear in AI writing because they are common in the training data — business reports, marketing copy, academic papers. They signal credibility without saying anything concrete.
| AI word | Why it fails | Use instead |
|---|---|---|
| Leverage | Vague action verb | Use, apply, build on |
| Utilize | Fancier version of "use" | Use |
| Facilitate | Removes the actual action | Help, allow, support |
| Implement | Can almost always be simplified | Start, roll out, put in place |
| Optimize | Means nothing without context | Improve, speed up, cut down on |
| Streamline | Generic process word | Simplify, speed up |
| Harness | Sounds like a commercial | Use, tap into, apply |
| Robust | Overused quality claim | Strong, reliable, solid |
| Seamlessly | Too smooth to be real | Works well, fits easily |
| Scalable | Vague growth claim | Grows with you, easy to expand |
When a student writes "leveraging AI tools to facilitate better outcomes," they could just write "using AI to get better results." The second version is shorter, clearer, and sounds like a person wrote it.
AI Phrases to Avoid at the Start of a Paragraph
These phrases appear at the beginning of AI-generated paragraphs because they are common openers in the training data. They add no information and immediately signal that what follows is generated text.
| AI opener | What to do instead |
|---|---|
| In today's fast-paced world | Start with the actual claim |
| In today's society | Be specific about the context |
| In an ever-changing landscape | Name the thing that is changing |
| This essay will discuss | Start with the argument |
| It is evident that | Make the statement directly |
| There is no doubt that | State it — don't announce it |
| In conclusion | To wrap up, so, the short version |
| To sum up | Just say what you're summarizing |
| At the end of the day | Cut it — nothing follows that phrase that couldn't stand alone |
Common AI Hype Words
AI writing uses these words to add weight to claims, but because they appear without supporting evidence, they have the opposite effect.
| AI word | Problem | Replacement |
|---|---|---|
| Revolutionary | Claim without proof | What actually changed, and by how much |
| Transformative | Same issue | Name the specific shift |
| Game-changing | Marketing cliché | What the actual impact was |
| Groundbreaking | Vague superlative | What was new about it |
| Innovative | Overused | New, different, first to do X |
| Cutting-edge | Generic | Name the specific technology |
| Remarkable | Empty praise | Say what was actually notable |
| Comprehensive | Says nothing | Describe what it covers specifically |
| Crucial | Overused emphasis | Important, necessary, key |
| Significant | Same | Describe the size or nature of the impact |
Here is the difference in practice. An AI draft might read:
"This innovative approach represents a transformative shift in how educators engage with students."
A rewrite that says the same thing with more credibility:
“This method cut average essay revision time from four sessions to one — teachers in the pilot reported spending more time on feedback and less on corrections.”
The second version is more specific, more interesting, and harder to generate automatically.
Commonly Used AI Sentence Starters
AI often adds qualifiers to avoid making strong claims. This appears in almost every output and is one of the patterns detectors use.
| AI qualifier | What to do |
|---|---|
| It can be argued that | Just make the argument |
| Some might say | Say who says it, or drop the hedge |
| In many ways | In what ways specifically? |
| To some extent | How much? Be precise |
| It seems that | Either it is or it isn't |
| One could say | You're saying it — own it |
| Generally speaking | What's the exception? Name it |
How to Replace Common AI Words and Phrases
Here is the AI-generated paragraphs at 100% detection confidence, and the same paragraph rewritten to lower AI score:
Here's how you can rewrite AI text, adding more personal details, making sentence structures more abrupt and human-like. The result of JustDone's AI detector shows 0% AI text found.
Manual rewriting takes time, since you need to totally rebuild your structure and write additional details. However, you can humanize AI text with JustDone's AI Humanizer. This tool is built to catch exactly AI words, phrases, and patterns. When you paste in a high-AI-confidence draft, it restructures at the sentence level — not just swapping words but changing rhythm and reducing the pattern density that detectors flag.
Here's what it can do in Auto mode for the same text:
You can also use the AI paraphraser. This tool does a different job: it gives you alternative phrasings for sentences where the structure itself is the problem, not the individual words. See it on the next screen.
Used together in the detect-humanize-recheck workflow, AI humanizer and AI paraphraser remove most of what lands writing in the AI-flagged category. These tools don't replace your voice. They help you find it.
What to Do When You Find Common AI Words in Your Draft
Here are my top three recommendations of finding AI words and phrases fast:
- Reading the full text out loud is the fastest way to find the problem areas. Sentences that make you pause, stumble, or feel like you are reading a memo rather than a conversation are the ones to rewrite first.
- For each flagged section, ask one question: what am I actually trying to say, and what would I say if I were explaining this to a classmate? Write that version. It will be shorter, more direct, and clearer than the AI draft in almost every case.
- If you are working on a longer piece or a tight deadline, use JustDone's AI Detector first to identify which sections have the highest AI confidence. Focus your manual edits there. Then run the humanizer on the rest. This approach takes less time than a full manual rewrite and produces more consistent results than relying on a tool alone.
Frequently Asked Questions
What are common words used in AI?
The most frequent ones fall into five groups: formal transitions (moreover, furthermore, consequently), vague action verbs (leverage, utilize, facilitate), generic emphasis words (crucial, significant, comprehensive), hype phrases (revolutionary, transformative, game-changing), and hedging qualifiers (it can be argued, to some extent). They are not wrong alone — the problem is they appear in clusters, which is how AI models produce them.
What are ChatGPT common words?
ChatGPT defaults to: "delve," "comprehensive," "nuanced," "moreover," "furthermore," "utilize," "leverage," "in conclusion," and "in today's fast-paced world." "Delve" is the strongest single signal — it appears in ChatGPT output far more often than in natural human writing. Two or three of these in the same paragraph is a reliable sign the section needs a rewrite.
How do I rewrite AI sentences to sound more human?
Three changes make the most difference: shorten long sentences and follow them with short ones; replace transition words with ones specific to your argument; and add one concrete detail — a number, a name, a specific example — to any paragraph that makes a general claim. These changes shift the probability distribution of your text and make it harder to flag.
Which common AI phrases are most likely to trigger Turnitin?
Turnitin's AI detection focuses on sentence-level perplexity rather than a word blocklist, but texts heavy with formal connectors (moreover, furthermore, consequently), hedging phrases (it can be argued, to some extent), and generic openers (in today's world, this essay will) score as high-AI-probability consistently in structured testing.
Can I use AI humanizer tools to remove common AI words automatically?
Yes. JustDone's AI Humanizer identifies and restructures AI-pattern sentences, preserving meaning while reducing the word clusters and rhythm patterns that flag as AI-generated. It works best when used after you have made manual edits to your most important paragraphs — the opening, key arguments, and conclusion.
How to check if my text has too many AI words and phrases?
Run your text through JustDone's AI Detector before submitting. Sections highlighted with high-confidence AI scores are where your AI word density is highest. Focus edits there, then re-check. For texts over 1,000 words, check section by section rather than as a single block — patterns accumulate across paragraphs in ways that shorter text checks can miss.
Conclusion
Understanding AI-generated words is a big step toward writing better and more naturally. You don’t need to sound like a machine to write well. You just need to be clear, honest, and yourself.
Use AI tools like AI Humanizer or AI Paraphraser as a way to grow, not as a shortcut. Don't let common AI sentence structure take away your voice. Whether you’re writing a paper, preparing a speech, or working on an application, your voice is your strength. Let it shine through.
