# AI Writing Detection Words, phrases, and punctuation patterns commonly associated with AI-generated text. Avoid these to ensure writing sounds natural and human. Sources: Grammarly (2025), Microsoft 365 Life Hacks (2025), GPTHuman (2025), Walter Writes (2025), Textero (2025), Plagiarism Today (2025), Rolling Stone (2025), MDPI Blog (2025) --- ## Em Dashes: The Primary AI Tell **The em dash (—) has become one of the most reliable markers of AI-generated content.** Em dashes are longer than hyphens (-) and are used for emphasis, interruptions, or parenthetical information. While they have legitimate uses in writing, AI models drastically overuse them. ### Why Em Dashes Signal AI Writing - AI models were trained on edited books, academic papers, and style guides where em dashes appear frequently - AI uses em dashes as a shortcut for sentence variety instead of commas, colons, or parentheses - Most human writers rarely use em dashes because they don't exist as a standard keyboard key - The overuse is so consistent that it has become the unofficial signature of ChatGPT writing ### What To Do Instead | Instead of | Use | |------------|-----| | The results—which were surprising—showed... | The results, which were surprising, showed... | | This approach—unlike traditional methods—allows... | This approach, unlike traditional methods, allows... | | The study found—as expected—that... | The study found, as expected, that... | | Communication skills—both written and verbal—are essential | Communication skills (both written and verbal) are essential | ### Guidelines - Use commas for most parenthetical information - Use colons to introduce explanations or lists - Use parentheses for supplementary information - Reserve em dashes for rare, deliberate emphasis only - If you find yourself using more than one em dash per page, revise --- ## Overused Verbs | Avoid | Use Instead | |-------|-------------| | delve (into) | explore, examine, investigate, look at | | leverage | use, apply, draw on | | optimise | improve, refine, enhance | | utilise | use | | facilitate | help, enable, support | | foster | encourage, support, develop, nurture | | bolster | strengthen, support, reinforce | | underscore | emphasise, highlight, stress | | unveil | reveal, show, introduce, present | | navigate | manage, handle, work through | | streamline | simplify, make more efficient | | enhance | improve, strengthen | | endeavour | try, attempt, effort | | ascertain | find out, determine, establish | | elucidate | explain, clarify, make clear | --- ## Overused Adjectives | Avoid | Use Instead | |-------|-------------| | robust | strong, reliable, thorough, solid | | comprehensive | complete, thorough, full, detailed | | pivotal | key, critical, central, important | | crucial | important, key, essential, critical | | vital | important, essential, necessary | | transformative | significant, important, major | | cutting-edge | new, advanced, recent, modern | | groundbreaking | new, original, significant | | innovative | new, original, creative | | seamless | smooth, easy, effortless | | intricate | complex, detailed, complicated | | nuanced | subtle, complex, detailed | | multifaceted | complex, varied, diverse | | holistic | complete, whole, comprehensive | --- ## Overused Transitions and Connectors | Avoid | Use Instead | |-------|-------------| | furthermore | also, in addition, and | | moreover | also, and, besides | | notwithstanding | despite, even so, still | | that being said | however, but, still | | at its core | essentially, fundamentally, basically | | to put it simply | in short, simply put | | it is worth noting that | note that, importantly | | in the realm of | in, within, regarding | | in the landscape of | in, within | | in today's [anything] | currently, now, today | --- ## Phrases That Signal AI Writing ### Opening Phrases to Avoid - "In today's fast-paced world..." - "In today's digital age..." - "In an era of..." - "In the ever-evolving landscape of..." - "In the realm of..." - "It's important to note that..." - "Let's delve into..." - "Imagine a world where..." ### Transitional Phrases to Avoid - "That being said..." - "With that in mind..." - "It's worth mentioning that..." - "At its core..." - "To put it simply..." - "In essence..." - "This begs the question..." ### Concluding Phrases to Avoid - "In conclusion..." - "To sum up..." - "By [doing X], you can [achieve Y]..." - "In the final analysis..." - "All things considered..." - "At the end of the day..." ### Structural Patterns to Avoid - "Whether you're a [X], [Y], or [Z]..." (listing three examples after "whether") - "It's not just [X], it's also [Y]..." - "Think of [X] as [elaborate metaphor]..." - Starting sentences with "By" followed by a gerund: "By understanding X, you can Y..." --- ## Filler Words and Empty Intensifiers These words often add nothing to meaning. Remove them or find specific alternatives: - absolutely - actually - basically - certainly - clearly - definitely - essentially - extremely - fundamentally - incredibly - interestingly - naturally - obviously - quite - really - significantly - simply - surely - truly - ultimately - undoubtedly - very --- ## Academic-Specific AI Tells | Avoid | Use Instead | |-------|-------------| | shed light on | clarify, explain, reveal | | pave the way for | enable, allow, make possible | | a myriad of | many, numerous, various | | a plethora of | many, numerous, several | | paramount | very important, essential, critical | | pertaining to | about, regarding, concerning | | prior to | before | | subsequent to | after | | in light of | because of, given, considering | | with respect to | about, regarding, for | | in terms of | regarding, for, about | | the fact that | that (or rewrite sentence) | --- ## How to Self-Check 1. Read your text aloud. If phrases sound unnatural in speech, revise them 2. Ask: "Would I say this in a conversation with a colleague?" 3. Check for repetitive sentence structures 4. Look for clusters of the words listed above 5. Ensure varied sentence lengths (not all similar length) 6. Verify each intensifier adds genuine meaning