incisivevsinvasiveWhich spelling fits?

Which to use

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

#38,901
“incisive” frequency rank
#11,404
“invasive” frequency rank
50305
confusion score

Side-by-Side Comparison

Feature incisive invasive
Definition Intelligently analytical and concise. (of a person or mental process) Of or pertaining to invasion; offensive.

Where the eye mixes incisive and invasive

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. incisive and invasive follow the identical consonant-vowel pattern (VCCVCVCV). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
incisive
8 ch
invasive

Look-alike desk: incisive vs invasive

A purely visual mix-up. incisive (/ɪnˈsaɪ.sɪv/) and invasive (/ɪnˈveɪsɪv/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50305, 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/. invasive is at rank #11,404, tagged as anadj, pronounced /ɪnˈveɪsɪv/.

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 50305, this pair ranks #175,516 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of incisive vs invasive

Shared letters: einsv. Private to "incisive": c. Private to "invasive": a.

"incisive" · 8 letters · shape VCCVCVCV  ·  "invasive" · 8 letters · shape VCCVCVCV

Known mistypes of this pair

  • incisive ← icnisive · inccisive · inciisve · incisiev · incisivve · incissive · incisvie · incsiive
  • invasive ← inavsive · innvasive · invaisve · invasiev · invasivve · invassive · invasvie · invsaive

Frequently Asked Questions

Can "incisive" and "invasive" be used interchangeably?
No. They are said differently (/ɪnˈsaɪ.sɪv/ versus /ɪnˈveɪsɪv/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "incisive" vs "invasive" - which ranks higher?
"invasive" is the more common of the two: it sits at frequency rank #11,404 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.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "incisive" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "invasive" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #175,516 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "incisive" and "invasive" also get mixed up with nearby pairs, the highest-scored neighbour is "incisive 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 #175,516 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