Which to use
“unquestionable” is an adjective and “unquestionably” is an adverb - they look or sound alike but fill different roles in a sentence.
- #46,243
- “unquestionable” frequency rank
- #22,848
- “unquestionably” frequency rank
- 69091
- confusion score
Side-by-Side Comparison
| Feature | unquestionable | unquestionably |
|---|---|---|
| Definition | Undeniable, obvious. | Without question; beyond doubt; indubitably. |
Where the eye mixes unquestionable and unquestionably
Muted = shared; highlighted = the visual trap. They share 13 letters in sequence.
Visual trap between unquestionable and unquestionably
These two trip readers on the page rather than in the ear: unquestionable is /ʌnˈkwɛs.t͡ʃən.ə.bl̩/ while unquestionably is /ʌnˈkwɛs.t͡ʃən.ə.bli/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “unquestionable” becomes y in “unquestionably”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 69091, derived from the frequency rank of both members and their visual similarity.
unquestionable is recorded at frequency rank #46,243, classified as anadj, pronounced /ʌnˈkwɛs.t͡ʃən.ə.bl̩/. unquestionably is at rank #22,848, tagged as anadv, pronounced /ʌnˈkwɛs.t͡ʃən.ə.bli/.
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 69091, this pair ranks #56,023 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of unquestionable vs unquestionably
Shared letters: abeilnoqstu. Private to "unquestionable": -. Private to "unquestionably": y.
"unquestionable" · 14 letters · shape VCCVVCCVVCVCCV · "unquestionably" · 14 letters · shape VCCVVCCVVCVCCV
Known mistypes of this pair
- unquestionable ← nuquestionable · unnquestionable · unqeustionable · unqquestionable · unquesitonable · unquesstionable · unquestinoable · unquestioanble
- unquestionably ← nuquestionably · unnquestionably · unqeustionably · unqquestionably · unquesitonably · unquesstionably · unquestinoably · unquestioanbly
Frequently Asked Questions
Do "unquestionable" and "unquestionably" mean the same thing in a sentence?
Frequency check: "unquestionable" vs "unquestionably" - which ranks higher?
Useful next steps
Eye-level mix-up between "unquestionable" and "unquestionably" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "unquestionable" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "unquestionably" - compare definitions side by side with the headword page. Word entry
- This pair ranks #56,023 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- 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 #56,023 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.