Which to use
“rarely” is an adverb and “rarest” is an adjective - they look or sound alike but fill different roles in a sentence.
- #3,523
- “rarely” frequency rank
- #26,570
- “rarest” frequency rank
- 30093
- confusion score
Side-by-Side Comparison
| Feature | rarely | rarest |
|---|---|---|
| Definition | Not occurring at a regular interval; seldom; not often. | superlative form of rare: most rare |
Where the eye mixes rarely and rarest
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. rarely (CVCVCV) and rarest (CVCVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses rarely with rarest
These two trip readers on the page rather than in the ear: rarely is /ˈɹɛːli/ while rarest is /ˈɹɛɹəst/. 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 (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 30093, derived from the frequency rank of both members and their visual similarity.
rarely is recorded at frequency rank #3,523, classified as anadv, pronounced /ˈɹɛːli/. 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 30093, this pair ranks #357,410 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rarely vs rarest
Shared letters: aer. Private to "rarely": ly. Private to "rarest": st.
"rarely" · 6 letters · shape CVCVCV · "rarest" · 6 letters · shape CVCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "rarely" and "rarest" be used interchangeably?
In ordinary English text, does "rarely" or "rarest" show up more?
After this comparison
Eye-level mix-up between "rarely" and "rarest" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rarely" 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 #357,410 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rarely" 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 #357,410 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.