Which to use
“rare” and “rarest” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,772
- “rare” frequency rank
- #26,570
- “rarest” frequency rank
- 28342
- confusion score
Side-by-Side Comparison
| Feature | rare | rarest |
|---|---|---|
| Definition | Very uncommon; scarce. | superlative form of rare: most rare |
Where the eye mixes rare and rarest
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. rare runs 4 letters (CVCV) against rarest's 6 (CVCVCC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: rare vs rarest
A purely visual mix-up. rare (/ɹɛ/) and rarest (/ˈɹɛɹəst/) 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 extra letter(s) - “rare” sits inside “rarest”. Our composite confusion score for this pair is 28342, derived from the frequency rank of both members and their visual similarity.
rare is recorded at frequency rank #1,772, classified as anadj, pronounced /ɹɛ/. rarest is at rank #26,570, tagged as anadj, pronounced /ˈɹɛɹəst/.
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 28342, this pair ranks #371,835 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rare vs rarest
Shared letters: aer. Private to "rare": -. Private to "rarest": st.
"rare" · 4 letters · shape CVCV · "rarest" · 6 letters · shape CVCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "rare" and "rarest" be used interchangeably?
In ordinary English text, does "rare" or "rarest" show up more?
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 "rare" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rarest" - compare definitions side by side with the headword page. Word entry
- This pair ranks #371,835 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rare" and "rarest" also get mixed up with nearby pairs, the highest-scored neighbour is "rakes vs rarest". 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 #371,835 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.