Which to use
“chilly” is an adjective and “coolly” is an adverb - they look or sound alike but fill different roles in a sentence.
- #14,916
- “chilly” frequency rank
- #43,577
- “coolly” frequency rank
- 58493
- confusion score
Side-by-Side Comparison
| Feature | chilly | coolly |
|---|---|---|
| Definition | Cold enough to cause discomfort. | At a moderately low temperature. |
Where the eye mixes chilly and coolly
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. chilly (CCVCCV) and coolly (CVVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between chilly and coolly
These two trip readers on the page rather than in the ear: chilly is /ˈt͡ʃɪli/ while coolly is /ˈkuːl.li/. 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 (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 58493, derived from the frequency rank of both members and their visual similarity.
chilly is recorded at frequency rank #14,916, classified as anadj, pronounced /ˈt͡ʃɪli/. coolly is at rank #43,577, tagged as anadv, pronounced /ˈkuːl.li/.
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 58493, this pair ranks #112,185 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of chilly vs coolly
Shared letters: cly. Private to "chilly": hi. Private to "coolly": o.
"chilly" · 6 letters · shape CCVCCV · "coolly" · 6 letters · shape CVVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "chilly" for "coolly" ever safe?
Frequency check: "chilly" vs "coolly" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "chilly" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "coolly" - compare definitions side by side with the headword page. Word entry
- This pair ranks #112,185 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "chilly" and "coolly" also get mixed up with nearby pairs, the highest-scored neighbour is "Cally vs coolly". 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 #112,185 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.