Which to use
“critical” is an adjective and “critically” is an adverb - they look or sound alike but fill different roles in a sentence.
- #1,559
- “critical” frequency rank
- #8,532
- “critically” frequency rank
- 10091
- confusion score
Side-by-Side Comparison
| Feature | critical | critically |
|---|---|---|
| Definition | Inclined to find fault or criticize. | In a critical manner; with, or in terms of, criticism. |
Where the eye mixes critical and critically
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Look-alike desk: critical vs critically
These two trip readers on the page rather than in the ear: critical is /ˈkɹɪt.ɪ.kəl/ while critically is /ˈkɹɪt.ɪk.li/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “critical” sits inside “critically”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 10091, derived from the frequency rank of both members and their visual similarity.
critical is recorded at frequency rank #1,559, classified as anadj, pronounced /ˈkɹɪt.ɪ.kəl/. critically is at rank #8,532, tagged as anadv, pronounced /ˈkɹɪt.ɪk.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 10091, this pair ranks #494,086 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of critical vs critically
Shared letters: acilrt. Private to "critical": -. Private to "critically": y.
"critical" · 8 letters · shape CCVCVCVC · "critically" · 10 letters · shape CCVCVCVCCV
Known mistypes of this pair
- critical ← ccritical · cirtical · criitcal · critcial · critiacl · criticall · criticcal · criticla
- critically ← ccritically · cirtically · criitcally · critcially · critiaclly · criticallyy · criticaly · criticalyl
Frequently Asked Questions
Is swapping "critical" for "critically" ever safe?
Which is more common, "critical" or "critically"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "critical" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "critically" - compare definitions side by side with the headword page. Word entry
- This pair ranks #494,086 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "critical" and "critically" also get mixed up with nearby pairs, the highest-scored neighbour is "criminally vs critically". 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 #494,086 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.