Which to use
“impecável” and “implacável” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #12,908
- “impecável” frequency rank
- #13,766
- “implacável” frequency rank
- 26674
- confusion score
Side-by-Side Comparison
| Feature | impecável | implacável |
|---|---|---|
| Definition | que é incapaz de pecar, de errar | que não se pode aplacar |
Where the eye mixes impecável and implacável
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. impecável runs 9 letters (VCCVCVCVC) against implacável's 10 (VCCCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between impecável and implacável
A purely visual mix-up. impecável (/ĩ.pɨ.ˈka.vɛɫ/) and implacável (/ĩ.plɐ.ˈka.vɛɫ/) 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 26674, derived from the frequency rank of both members and their visual similarity.
impecável is recorded at frequency rank #12,908, classified as anadj, pronounced /ĩ.pɨ.ˈka.vɛɫ/. implacável is at rank #13,766, tagged as anadj, pronounced /ĩ.plɐ.ˈka.vɛɫ/.
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 26674, this pair ranks #42,432 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of impecável vs implacável
Shared letters: ceilmpvá. Private to "impecável": -. Private to "implacável": a.
"impecável" · 9 letters · shape VCCVCVCVC · "implacável" · 10 letters · shape VCCCVCVCVC
Frequently Asked Questions
Can "impecável" and "implacável" be used interchangeably?
Frequency check: "impecável" vs "implacável" - which ranks higher?
After this comparison
Eye-level mix-up between "impecável" and "implacável" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "impecável" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "implacável" - compare definitions side by side with the headword page. Word entry
- This pair ranks #42,432 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "impecável" and "implacável" also get mixed up with nearby pairs, the highest-scored neighbour is "imparável vs implacável". Nearby pair
Confusion rank #42,432 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.