Which to use
“infra” is an adverb and “ingrat” is an adjective - they look or sound alike but fill different roles in a sentence.
- #18,228
- “infra” frequency rank
- #20,469
- “ingrat” frequency rank
- 38697
- confusion score
Side-by-Side Comparison
| Feature | infra | ingrat |
|---|---|---|
| Definition | Ci-dessous ; plus bas. | Qui n’a pas de reconnaissance, qui ne tient pas compte des bienfaits qu’il a reçus. |
Where the eye mixes infra and ingrat
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. infra runs 5 letters (VCCCV) against ingrat's 6 (VCCCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses infra with ingrat
These two trip readers on the page rather than in the ear: infra is \ɛ̃.fʁa\ while ingrat is \ɛ̃.ɡʁa\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 38697, derived from the frequency rank of both members and their visual similarity.
infra is recorded at frequency rank #18,228, classified as anadv, pronounced \ɛ̃.fʁa\. ingrat is at rank #20,469, tagged as anadj, pronounced \ɛ̃.ɡʁa\.
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 38697, this pair ranks #253,435 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infra vs ingrat
Shared letters: ainr. Private to "infra": f. Private to "ingrat": gt.
"infra" · 5 letters · shape VCCCV · "ingrat" · 6 letters · shape VCCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "infra" for "ingrat" ever safe?
Frequency check: "infra" vs "ingrat" - which ranks higher?
What to do next
Eye-level mix-up between "infra" and "ingrat" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "infra" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ingrat" - compare definitions side by side with the headword page. Word entry
- This pair ranks #253,435 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "infra" and "ingrat" also get mixed up with nearby pairs, the highest-scored neighbour is "IFRS vs infra". 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 #253,435 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.