confidentialityvsconfidentiallyTell them apart

Quick tell: confidentiality is a noun, confidentially is an adverb, so they fill different roles in a sentence.

Which to use

“confidentiality” is a noun and “confidentially” is an adverb - they look or sound alike but fill different roles in a sentence.

#15,990
“confidentiality” frequency rank
#46,391
“confidentially” frequency rank
62381
confusion score

Side-by-Side Comparison

Feature confidentiality confidentially
Definition The property of being confidential. In a confidential manner.

Letter map: confidentiality vs confidentially

Shared letters muted; letters that set confidentiality and confidentially apart highlighted. Shared run: 13. confidentiality runs 15 letters (CVCCVCVCCVVCVCV) against confidentially's 14 (CVCCVCVCCVVCCV) - the length gap alone is often enough to separate them once you know to check it.

15 ch
confidentiality
14 ch
confidentially

Role in the sentence - confidentiality and confidentially

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: confidentiality is anoun and confidentiallyanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 62381, derived from the frequency rank of both members and their visual similarity.

confidentiality is recorded at frequency rank #15,990, classified as anoun. 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 62381, this pair ranks #88,811 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of confidentiality vs confidentially

Shared letters: acdefilnoty. Private to "confidentiality": -. Private to "confidentially": -.

"confidentiality" · 15 letters · shape CVCCVCVCCVVCVCV  ·  "confidentially" · 14 letters · shape CVCCVCVCCVVCCV

Known mistypes of this pair

  • confidentiality ← cconfidentiality · cnofidentiality · cofnidentiality · confdientiality · conffidentiality · confiddentiality · confidenitality · confidenntiality
  • confidentially ← cconfidentially · cnofidentially · cofnidentially · confdientially · conffidentially · confiddentially · confidenitally · confidenntially

Frequently Asked Questions

Do "confidentiality" and "confidentially" mean the same thing in a sentence?
No - they are not even the same part of speech. "confidentiality" is a noun and "confidentially" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "confidentiality" or "confidentially"?
"confidentiality" is the more common of the two: it sits at frequency rank #15,990 in our English list, against #46,391 for "confidentially". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "confidentiality" vs "confidentially" is on the table, pick a follow-up below.

  • Full dictionary entry for "confidentiality" 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 #88,811 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "confidentiality" and "confidentially" also get mixed up with nearby pairs, the highest-scored neighbour is "confidential 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 #88,811 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list