Which to use
“impacts” is a noun and “impairs” is an adjective - they look or sound alike but fill different roles in a sentence.
- #9,673
- “impacts” frequency rank
- #46,223
- “impairs” frequency rank
- 55896
- confusion score
Side-by-Side Comparison
| Feature | impacts | impairs |
|---|---|---|
| Definition | Pluriel de impact. | Masculin pluriel de impair. |
Where the eye mixes impacts and impairs
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: impacts vs impairs
These two trip readers on the page rather than in the ear: impacts is \ɛ̃.pakt\ while impairs is \ɛ̃.pɛʁ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 55896, derived from the frequency rank of both members and their visual similarity.
impacts is recorded at frequency rank #9,673, classified as anoun, pronounced \ɛ̃.pakt\. impairs is at rank #46,223, tagged as anadj, pronounced \ɛ̃.pɛʁ\.
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 55896, this pair ranks #124,496 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of impacts vs impairs
Shared letters: aimps. Private to "impacts": ct. Private to "impairs": r.
"impacts" · 7 letters · shape VCCVCCC · "impairs" · 7 letters · shape VCCVVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "impacts" for "impairs" ever safe?
Frequency check: "impacts" vs "impairs" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "impacts" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "impairs" - compare definitions side by side with the headword page. Word entry
- This pair ranks #124,496 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "impacts" and "impairs" also get mixed up with nearby pairs, the highest-scored neighbour is "impairs vs impayés". 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 #124,496 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.