Which to use
“decisive” is an adjective and “decisively” is an adverb - they look or sound alike but fill different roles in a sentence.
- #9,593
- “decisive” frequency rank
- #24,722
- “decisively” frequency rank
- 34315
- confusion score
Side-by-Side Comparison
| Feature | decisive | decisively |
|---|---|---|
| Definition | Having the power or quality of deciding a question or controversy; putting an end to contest or controversy; final; conclusive. | In a decisive manner. |
Where the eye mixes decisive and decisively
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Look-alike desk: decisive vs decisively
These two trip readers on the page rather than in the ear: decisive is /dɪˈsaɪsɪv/ while decisively is /dɪˈsaɪsɪvli/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “decisive” sits inside “decisively”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 34315, derived from the frequency rank of both members and their visual similarity.
decisive is recorded at frequency rank #9,593, classified as anadj, pronounced /dɪˈsaɪsɪv/. decisively is at rank #24,722, tagged as anadv, pronounced /dɪˈsaɪsɪvli/.
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 34315, this pair ranks #321,867 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of decisive vs decisively
Shared letters: cdeisv. Private to "decisive": -. Private to "decisively": ly.
"decisive" · 8 letters · shape CVCVCVCV · "decisively" · 10 letters · shape CVCVCVCVCV
Known mistypes of this pair
- decisive ← dceisive · ddecisive · deccisive · deciisve · decisiev · decisivve · decissive · decisvie
- decisively ← dceisively · ddecisively · deccisively · deciisvely · decisievly · decisivelly · decisivelyy · decisiveyl
Frequently Asked Questions
Can "decisive" and "decisively" be used interchangeably?
Frequency check: "decisive" vs "decisively" - which ranks higher?
Useful next steps
Eye-level mix-up between "decisive" and "decisively" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "decisive" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "decisively" - compare definitions side by side with the headword page. Word entry
- This pair ranks #321,867 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "decisive" and "decisively" also get mixed up with nearby pairs, the highest-scored neighbour is "decisive vs divisive". 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 #321,867 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.