Which to use
“confidential” is an adjective and “confidentially” is an adverb - they look or sound alike but fill different roles in a sentence.
- #8,265
- “confidential” frequency rank
- #46,391
- “confidentially” frequency rank
- 54656
- confusion score
Side-by-Side Comparison
| Feature | confidential | confidentially |
|---|---|---|
| Definition | Kept, or meant to be kept, secret within a certain circle of persons; not intended to be known publicly | In a confidential manner. |
Letter map: confidential vs confidentially
Shared letters muted; letters that set confidential and confidentially apart highlighted. Shared run: 12. confidential runs 12 letters (CVCCVCVCCVVC) against confidentially's 14 (CVCCVCVCCVVCCV) - the length gap alone is often enough to separate them once you know to check it.
Role in the sentence - confidential and confidentially
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: confidential is anadjective and confidentiallyanadverb. On the page they differ by 2 extra letter(s) - “confidential” sits inside “confidentially”. Our composite confusion score for this pair is 54656, derived from the frequency rank of both members and their visual similarity.
confidential is recorded at frequency rank #8,265, classified as anadj, pronounced /ˌkɑːnfɪˈdɛnʃl/. confidentially is at rank #46,391, tagged as anadv.
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 54656, this pair ranks #139,409 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of confidential vs confidentially
Shared letters: acdefilnot. Private to "confidential": -. Private to "confidentially": y.
"confidential" · 12 letters · shape CVCCVCVCCVVC · "confidentially" · 14 letters · shape CVCCVCVCCVVCCV
Known mistypes of this pair
- confidential ← cconfidential · cnofidential · cofnidential · confdiential · conffidential · confiddential · confidenital · confidenntial
- confidentially ← cconfidentially · cnofidentially · cofnidentially · confdientially · conffidentially · confiddentially · confidenitally · confidenntially
Frequently Asked Questions
Can "confidential" and "confidentially" be used interchangeably?
Which is more common, "confidential" or "confidentially"?
After this comparison
Pair "confidential" vs "confidentially" is on the table, pick a follow-up below.
- Full dictionary entry for "confidential" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "confidentially" - compare definitions side by side with the headword page. Word entry
- This pair ranks #139,409 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "confidential" and "confidentially" also get mixed up with nearby pairs, the highest-scored neighbour is "confidentiality vs confidentially". 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 #139,409 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.