AI Writing Tells
Moreover, Furthermore, Additionally: The Transition-Word Tells AI Can't Shake
AI models lean on moreover, furthermore, and additionally far more than any human editor would. Here's why they do it and how to cut them.

Open any raw ChatGPT draft and read the paragraph breaks. There is a good chance at least one of them is stitched together with "Furthermore," "Moreover," or "Additionally." Run a second pass and you will likely find all three. These words are to AI writing what a watermark is to a stock photo: technically invisible until you notice them, then impossible to unsee.
This guide catalogs the transition words AI models reach for most, explains the pattern behind the habit, and shows practical ways to fix them without losing the logic they were meant to carry.
Why AI Models Love Formal Connectives
Language models are trained on enormous bodies of text: academic papers, encyclopedias, formal reports, how-to articles. Those genres share a convention. They signal relationships between sentences with explicit logical connectives rather than trusting the reader to infer them. "Furthermore" means I am adding supporting evidence. "Moreover" means here is something even stronger. "Additionally" means here is one more thing on the pile.
The model has seen that pattern billions of times. When it needs to add a new piece of information to a paragraph, it does what its training rewarded: it reaches for a formal connective that telegraphs the move.
The trouble is that human writers almost never do this in casual or commercial prose. A newsletter writer doesn't say "Furthermore, the sale ends Sunday." A blogger doesn't write "Moreover, the recipe works for vegans." Those sentences feel stiff because a real person writing for a real reader would just say the thing and trust the reader to follow. The connective is a hedge. It is the writer saying I am not sure you will understand how this fits, so let me label it explicitly.
AI uses these labels as a structural crutch. The result reads like an essay written by someone who was taught the five-paragraph format and never left it behind.
The Full Lineup of Offenders
"Furthermore," "moreover," and "additionally" get the most attention, but they have company. The broader family of AI-favored formal transitions includes:
Additive connectives: Furthermore, Moreover, Additionally, In addition, Also worth noting, It is also worth mentioning, Not only that
Contrast connectives: However, Nevertheless, Nonetheless, On the other hand, Conversely, That being said, Having said that
Causal connectives: Therefore, Thus, Consequently, As a result, For this reason, It is important to note that
Summarizing connectives: In conclusion, To summarize, In summary, Ultimately, In essence
None of these words are wrong in isolation. Academic writing uses them correctly and necessarily. The tell is frequency and placement. When a 600-word blog post contains "furthermore," "moreover," "additionally," "however," and "in conclusion," each sitting at the head of its own sentence, the prose sounds like it was assembled from a template rather than written by a person thinking out loud.
For a broader look at vocabulary patterns that signal AI authorship, the guide on delve, tapestry, and other AI vocabulary to avoid covers the noun and verb side of the same problem.
Before and After: One Paragraph Fixed
Here is a short paragraph as ChatGPT might write it, transitions intact:
Remote work has changed how teams communicate. Furthermore, it has created new expectations around response times. Moreover, employees now expect more flexibility in their schedules. Additionally, companies that resist this shift are finding it harder to retain talent.
Nothing in that paragraph is wrong. The logic is sound. The structure is clear. It also reads exactly like a model ticking boxes. Every sentence adds one point, and every sentence announces that it is doing so.
Here is the same paragraph rewritten without the connectives:
Remote work has changed how teams communicate, and it has reset what people expect from their jobs. Employees want flexibility and faster feedback. Companies that resist both are losing people.
Three sentences instead of four. No transition words at all. The logical relationships are the same. The reader still understands that the points build on each other. The prose just reads like a person wrote it in one sitting rather than a system generating sentences in sequence.
This is the core of the fix: the transitions were carrying information that the sentence order and basic syntax already carry on their own. Removing them doesn't remove logic. It removes scaffolding that was only there because the model couldn't trust the reader to follow without it.
How to Find and Replace Them
Reading your draft for transitions is faster than reading it for tone or style because you are scanning for a short list of known words. A simple method:
Ctrl+F each offender. Search for "furthermore," "moreover," "additionally," "in addition," "however," "nevertheless," "therefore," "thus," "consequently," "in conclusion," and "to summarize" in your document. Count how many hits you get per 500 words. If the total is more than two or three, the draft has a formality problem.
For each hit, ask one question: does this sentence need to announce its relationship to the previous one, or is that relationship obvious from context? If obvious, delete the transition and read the sentences back-to-back. Almost always they still connect cleanly.
When the relationship genuinely isn't obvious, replace the formal connective with a shorter bridge. "Furthermore" can become "And." "However" can become "But." "As a result" can become "So." These shorter words carry the same logical function at a fraction of the weight. They also happen to be words real humans use when they speak.
Watch for transitions hiding inside sentences, not just at the start. "It is also important to note that..." is "Furthermore" in disguise. "That being said..." is "However" wearing a mask. The full list in the previous section will catch most of them, but reading aloud will catch the rest. When a sentence sounds like it belongs in a policy document, it probably has one of these hiding in it.
For a complete checklist of phrases that give AI text away, the words that instantly signal AI-generated text and 18 signs a piece of text was written by AI both cover this territory with more examples.
When You Want Automation to Handle It
If you are editing AI output at volume, running a manual Ctrl+F sweep on every draft gets old fast. The humanizer prompt at /humanizer-prompt includes specific instructions that push the model to drop formal connectives before the draft reaches you. It won't catch every instance, but it reduces the count enough that a light manual pass finishes the job.
The prompt works by telling the model to prefer short bridging words and sentence-level juxtaposition over labeled transitions. It is not a grammar rule. It is a style instruction, and models respond to style instructions reasonably well when they are specific.
For a systematic approach to vocabulary replacement beyond transitions, replacing AI buzzwords with plain language lays out the same find-and-replace logic applied to nouns and verbs.
Frequently Asked Questions
Are transition words always a sign that something was written by AI?
No. Human writers use transition words too, and some genres require them. Academic writing, legal documents, and formal reports all rely on explicit connectives for precision. The tell is density and register mismatch: a blog post, email, or product description that reads like an academic paper is using transitions in the wrong context.
What if removing transitions makes my writing feel choppy?
That usually means the sentences themselves need work, not that you need to add transitions back. Short sentences that don't connect well often need to be merged, reordered, or rewritten so the logic flows from the sentence structure rather than from an explicit label. Transitions are often a patch for sentences that don't quite fit together yet.
Is "however" always bad?
No. "But" and "however" do the same job, and sometimes "however" fits the tone of a piece better. The problem is when "however" appears multiple times in a short passage, or when it sits at the head of every contrasting sentence in a draft. One "however" per 400 words or so is probably fine.
Why do models use "in conclusion" even when the piece isn't an essay?
Because a large share of the training data that contained summaries also contained "in conclusion." The model learned that summarizing paragraphs often start that way. It doesn't know that the convention belongs to a specific genre. Explicit instructions in your prompt, such as "do not use 'in conclusion' or 'to summarize,'" reliably suppress it.
Does this matter for AI detectors?
It can. Some detectors weight formal connective density as one signal among many. More practically, reducing transitions brings the prose closer to natural human writing, which is what detectors are trying to measure in the first place. The detectors are imperfect, but the underlying goal, making the writing sound like a person, is worth pursuing regardless of whether a tool is scoring it.