instinctvsinstinctifWhich spelling fits?

Quick tell: instinct is a noun, instinctif is an adjective, so they fill different roles in a sentence.

Which to use

“instinct” is a noun and “instinctif” is an adjective - they look or sound alike but fill different roles in a sentence.

#7,197
“instinct” frequency rank
#39,356
“instinctif” frequency rank
46553
confusion score

Side-by-Side Comparison

Feature instinct instinctif
Definition Mouvement intérieur qui est naturel aux animaux et qui les fait agir sans le secours de la réflexion pour accomplir des actes conformes à leur espèce et adaptés à leurs besoins. Qui tient de l’instinct, qui naît de l’instinct.

Where the eye mixes instinct and instinctif

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

8 ch
instinct
10 ch
instinctif

Visual trap between instinct and instinctif

These two trip readers on the page rather than in the ear: instinct is \ɛ̃s.tɛ̃\ while instinctif is \ɛ̃s.tɛ̃k.tif\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “instinct” sits inside “instinctif”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 46553, derived from the frequency rank of both members and their visual similarity.

instinct is recorded at frequency rank #7,197, classified as anoun, pronounced \ɛ̃s.tɛ̃\. instinctif is at rank #39,356, tagged as anadj, pronounced \ɛ̃s.tɛ̃k.tif\.

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 46553, this pair ranks #194,010 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of instinct vs instinctif

Shared letters: cinst. Private to "instinct": -. Private to "instinctif": f.

"instinct" · 8 letters · shape VCCCVCCC  ·  "instinctif" · 10 letters · shape VCCCVCCCVC

Known mistypes of this pair

  • instinctinnstinct · insitnct · insstinct · insticnt · instincct · instinctt · instinnct · instintc
  • instinctifinnstinctif · insitnctif · insstinctif · insticntif · instincctif · instincitf · instinctfi · instinctiff

Frequently Asked Questions

Is swapping "instinct" for "instinctif" ever safe?
No - they are not even the same part of speech. "instinct" is a noun and "instinctif" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "instinct" vs "instinctif" - which ranks higher?
"instinct" is the more common of the two: it sits at frequency rank #7,197 in our French list, against #39,356 for "instinctif". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "instinct" and "instinctif" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "instinct" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "instinctif" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #194,010 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "instinct" and "instinctif" also get mixed up with nearby pairs, the highest-scored neighbour is "instinctif vs instinctive". 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 #194,010 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list