Which to use
“adverse” and “averse” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,382
- “adverse” frequency rank
- #26,688
- “averse” frequency rank
- 35070
- confusion score
Side-by-Side Comparison
| Feature | adverse | averse |
|---|---|---|
| Definition | Unfavorable; antagonistic in purpose or effect; hostile; actively opposing one's interests or wishes; contrary to one's welfare; acting against; working in an opposing direction. | Having a repugnance or opposition of mind. |
Where the eye mixes adverse and averse
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. adverse runs 7 letters (VCCVCCV) against averse's 6 (VCVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses adverse with averse
A purely visual mix-up. adverse (/ˈæd.və(ɹ)s/) and averse (/əˈvɜː(ɹ)s/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 35070, derived from the frequency rank of both members and their visual similarity.
adverse is recorded at frequency rank #8,382, classified as anadj, pronounced /ˈæd.və(ɹ)s/. averse is at rank #26,688, tagged as anadj, pronounced /əˈvɜː(ɹ)s/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 35070, this pair ranks #315,159 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of adverse vs averse
Shared letters: aersv. Private to "adverse": d. Private to "averse": -.
"adverse" · 7 letters · shape VCCVCCV · "averse" · 6 letters · shape VCVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "adverse" and "averse" mean the same thing in a sentence?
In ordinary English text, does "adverse" or "averse" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "adverse" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "averse" - compare definitions side by side with the headword page. Word entry
- This pair ranks #315,159 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "adverse" and "averse" also get mixed up with nearby pairs, the highest-scored neighbour is "adverb vs adverse". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #315,159 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.