incisivevsindecisiveConfusable pair

Which to use

“incisive” and “indecisive” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#38,901
“incisive” frequency rank
#35,771
“indecisive” frequency rank
74672
confusion score

Side-by-Side Comparison

Feature incisive indecisive
Definition Intelligently analytical and concise. (of a person or mental process) Of a person, not decisive, not marked by promptness or decision.

Where the eye mixes incisive and indecisive

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

8 ch
incisive
10 ch
indecisive

Visual trap between incisive and indecisive

A purely visual mix-up. incisive (/ɪnˈsaɪ.sɪv/) and indecisive (/ˌɪndɪˈsaɪsɪv/) 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 2 letter(s) in length. Our composite confusion score for this pair is 74672, derived from the frequency rank of both members and their visual similarity.

incisive is recorded at frequency rank #38,901, classified as anadj, pronounced /ɪnˈsaɪ.sɪv/. indecisive is at rank #35,771, tagged as anadj, pronounced /ˌɪndɪˈsaɪsɪv/.

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 74672, this pair ranks #35,611 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of incisive vs indecisive

Shared letters: ceinsv. Private to "incisive": -. Private to "indecisive": d.

"incisive" · 8 letters · shape VCCVCVCV  ·  "indecisive" · 10 letters · shape VCCVCVCVCV

Known mistypes of this pair

  • incisiveicnisive · inccisive · inciisve · incisiev · incisivve · incissive · incisvie · incsiive
  • indecisiveidnecisive · indceisive · inddecisive · indeccisive · indeciisve · indecisiev · indecisivve · indecissive

Frequently Asked Questions

Can "incisive" and "indecisive" be used interchangeably?
No. They are said differently (/ɪnˈsaɪ.sɪv/ versus /ˌɪndɪˈsaɪsɪv/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "incisive" or "indecisive"?
"indecisive" is the more common of the two: it sits at frequency rank #35,771 in our English list, against #38,901 for "incisive". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "incisive" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "indecisive" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #35,611 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "incisive" and "indecisive" also get mixed up with nearby pairs, the highest-scored neighbour is "indecision vs indecisive". 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 #35,611 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list