AI words to avoid

By AI Humanizer Editorial TeamUpdated

The words that most often make writing sound AI-generated include delve, tapestry, testament, realm, crucial, pivotal, robust, seamless, leverage and foster, plus phrases like “in today’s fast-paced world” and “it’s important to note”. Replace each with a plain word or cut it. Below are 65 words and phrases with what to write instead.

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Grammar and spelling mistakes, unclear sentences and AI-sounding phrases will be listed here, each with a fix.
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65 words and phrases, each with a fix
Most overused
delve, tapestry, testament, crucial, pivotal, robust
Bigger tells
Even sentence length, lists of three, summary endings
Research
15 million+ PubMed abstracts: “delves” jumped after ChatGPT
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AI words to avoid: 35 words and what to write instead

AI wordTry instead
delve (into)look at, examine, dig into
tapestrymix, range
testament (to)evidence of, proof of, shows
realmarea, field
landscape (“the AI landscape”)field, market, situation
navigatehandle, deal with, get through
crucialimportant, key, or cut it
pivotalkey, deciding
paramountessential, the top priority
fosterbuild, encourage
robuststrong, solid
seamlesssmooth
leverageuse
utilizeuse
embark (on)start
underscoreshow, stress
multifacetedcomplex
myriadmany
plethoramany, plenty of
holisticwhole, complete
nuancedsubtle, detailed
intricatecomplex, detailed
vibrantlively, or describe what you saw
bustlingbusy
ever-evolvingchanging
game-changersay what changed
unlockopen, make possible
harnessuse
elevateimprove, raise
streamlinesimplify, speed up
showcaseshow
meticulouscareful
moreoveralso, and
furthermorealso, besides
additionallyalso

20 phrases that sound AI-written

AI phraseTry instead
In today’s fast-paced world“today”, or cut it
In today’s digital age“today”, or cut it
It’s important to note thatcut it and make the point
It’s worth noting thatcut it
When it comes tofor, with
At the end of the dayin the end, or cut it
A wide range ofmany, or name them
Plays a crucial role inmatters for, helps
In the realm ofin
A testament toshows
A rich tapestry ofa mix of
Navigate the complexities ofdeal with
Unlock the potential ofmake use of
Stands as a / serves as ais
Not only … but alsosay both plainly
It’s not just X, it’s Ysay what it is
Whether you’re a … or a …name your actual reader
Let’s dive incut it
Embark on a journeystart
In the ever-evolving world ofin

10 openers and closers to cut

  • In conclusion, … / In summary, … / To sum up, …
  • Overall, … / Ultimately, … / All in all, …
  • In essence, …
  • Certainly! / Great question!
  • I hope this helps.

A closing paragraph that repeats the three points you just made is one of the clearest signs of an unedited AI draft. End on your last real point, a recommendation or a question instead.

Patterns matter more than single words

  • Even rhythm. Sentence after sentence of the same length. Mix in a short one.
  • Lists of three. “Fast, reliable and affordable.” Keep the one that matters, or give a real example.
  • Contrast formulas. “It’s not just a tool, it’s a partner.” Say what it is.
  • Summary sentences. Every paragraph ending with a line that restates it.
  • Dashes everywhere. An em dash in every paragraph. Use commas, full stops or brackets.
  • Stacked hedges. “This can potentially help to improve…” Pick one: “This helps.”
  • Vague praise. “A vibrant community” instead of “300 members who meet every Thursday”.

Swapping words alone rarely changes how a text reads: the rhythm and the generic structure stay the same. Fixing sentence length, paragraph shape and vague claims changes much more.

Why AI uses these words

  • Language models are trained to sound polished and helpful, and they repeat the words that did that well in training. The effect is measurable: a study by Kobak and colleagues analyzed more than 15 million PubMed abstracts from 2010 to 2024 and found that

    “the appearance of LLMs led to an abrupt increase in the frequency of certain style words”

    Source: Kobak et al., Science Advances, 2025

Words such as “delves” jumped right after ChatGPT’s release, and the authors estimate that at least 13.5% of 2024 abstracts were processed with AI.

None of these words is wrong. “Crucial” and “robust” are normal English. The problem is density and vagueness: five of them in one paragraph, each standing in for a specific fact. Keep a word when it is the exact one you mean, and replace it when a plainer word or a concrete detail says more.

Frequently asked questions

What are common AI words to avoid?+

Delve, tapestry, testament, realm, landscape, navigate, crucial, pivotal, paramount, foster, robust, seamless, leverage, utilize, embark, underscore, multifaceted, myriad and plethora, plus openers like “moreover” and “furthermore” and phrases like “it’s important to note”.

What words are flagged as AI words?+

Detectors score the whole text, not single words, so no word is flagged by itself. But a high density of words like delve, crucial and tapestry makes readers and teachers suspect AI, and usually comes with the even rhythm detectors do pick up.

Is “delve” an AI word?+

It is a normal English word that AI models overuse. A study of more than 15 million PubMed abstracts found its use jumped after ChatGPT’s release. “Look at” or “examine” usually reads more naturally.

What words are banned from ChatGPT?+

None are banned. You can ask it to avoid words in your prompt, but it tends to drift back to them in longer texts, so check the result.

Does avoiding these words stop AI detection?+

Not on its own. Detectors look at the whole text, including rhythm and structure, so swapping words leaves most of the signal in place. Vary sentence length and replace vague claims with specifics as well. No method can guarantee a result.

Can I still use these words in my own writing?+

Yes. Use them when they are the exact word you mean, and not as filler. One “crucial” backed by a reason is fine; five in a paragraph read as AI.

Is there a prompt to avoid overused AI words?+

Try: “Write in plain English. Do not use delve, tapestry, testament, realm, crucial, pivotal, robust, seamless, leverage, foster, moreover or furthermore. Vary sentence length. No summary sentence at the end of paragraphs. No em dashes.” Then read the result and fix what slips through.

How can I find these words in my text?+

Paste it into the free checker at the top of this page. It lists AI-sounding phrases along with grammar and clarity issues, each with a suggested fix, up to 1,000 words per check with no sign-up.

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