Which to use
“callous” is an adjective and “callus” is a noun - they look or sound alike but fill different roles in a sentence.
- #26,355
- “callous” frequency rank
- #47,517
- “callus” frequency rank
- 73872
- confusion score
Side-by-Side Comparison
| Feature | callous | callus |
|---|---|---|
| Definition | Emotionally hardened; unfeeling and indifferent to the suffering/feelings of others. | A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use. |
Where the spellings diverge
Shared letters are muted; the letters that actually set callous and callus apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Say them out loud and nothing separates them: callous and callus carry the same recorded pronunciation, /ˈkæləs/. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 73872, derived from the frequency rank of both members and their visual similarity.
callous is recorded at frequency rank #26,355, classified as anadj, pronounced /ˈkæləs/. callus is at rank #47,517, tagged as anoun, pronounced /ˈkæləs/.
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 73872, this pair ranks #38,151 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of callous vs callus
Shared letters: aclsu. Private to "callous": o. Private to "callus": -.
"callous" · 7 letters · shape CVCCVVC · "callus" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "callous" and "callus" be used interchangeably?
Which is more common, "callous" or "callus"?
Remembering callous vs callus
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “callous”; for a noun, it's “callus”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “callous” entry
- Browse more pairs most likely to be confused. Most confusable