Which to use
“recursion” is a noun and “recursive” is an adjective - they look or sound alike but fill different roles in a sentence.
- #44,443
- “recursion” frequency rank
- #32,997
- “recursive” frequency rank
- 77440
- confusion score
Side-by-Side Comparison
| Feature | recursion | recursive |
|---|---|---|
| Definition | The act of recurring. | drawing upon itself, referring back. |
Where the eye mixes recursion and recursive
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Why the eye confuses recursion with recursive
These two trip readers on the page rather than in the ear: recursion is /ɹɪˈkɜː(ɹ)ʒən/ while recursive is /ɹɪˈkɜː(ɹ)sɪv/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 77440, derived from the frequency rank of both members and their visual similarity.
recursion is recorded at frequency rank #44,443, classified as anoun, pronounced /ɹɪˈkɜː(ɹ)ʒən/. recursive is at rank #32,997, tagged as anadj, pronounced /ɹɪˈkɜː(ɹ)sɪv/.
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 77440, this pair ranks #27,235 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of recursion vs recursive
Shared letters: ceirsu. Private to "recursion": no. Private to "recursive": v.
"recursion" · 9 letters · shape CVCVCCVVC · "recursive" · 9 letters · shape CVCVCCVCV
Known mistypes of this pair
Frequently Asked Questions
Can "recursion" and "recursive" be used interchangeably?
In ordinary English text, does "recursion" or "recursive" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "recursion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "recursive" - compare definitions side by side with the headword page. Word entry
- This pair ranks #27,235 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "recursion" and "recursive" also get mixed up with nearby pairs, the highest-scored neighbour is "recursion vs reversion". 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 #27,235 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.