accidentvsaccidentlyWhat's the difference?

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

Which to use

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

#1,979
“accident” frequency rank
#34,363
“accidently” frequency rank
36342
confusion score

Side-by-Side Comparison

Feature accident accidently
Definition An unexpected event with negative consequences occurring without the intention of the one suffering the consequences, and (in the strict sense) not directly caused by humans. Accidentally; by chance, unintentionally.

Letter map: accident vs accidently

Shared letters muted; letters that set accident and accidently apart highlighted. Shared run: 8. accident runs 8 letters (VCCVCVCC) against accidently's 10 (VCCVCVCCCV) - the length gap alone is often enough to separate them once you know to check it.

8 ch
accident
10 ch
accidently

Part-of-speech tell for accident / accidently

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: accident is anoun and accidentlyanadverb. On the page they differ by 2 extra letter(s) - “accident” sits inside “accidently”. Our composite confusion score for this pair is 36342, derived from the frequency rank of both members and their visual similarity.

accident is recorded at frequency rank #1,979, classified as anoun, pronounced /ˈæk.sɪ.dənt/. accidently is at rank #34,363, 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 36342, this pair ranks #303,973 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of accident vs accidently

Shared letters: acdeint. Private to "accident": -. Private to "accidently": ly.

"accident" · 8 letters · shape VCCVCVCC  ·  "accidently" · 10 letters · shape VCCVCVCCCV

Known mistypes of this pair

  • accident ← accdient · acciddent · accidennt · accidentt · accidetn · accidnet · acciednt · acicdent
  • accidently ← accdiently · acciddently · accidenlty · accidenntly · accidentlly · accidentlyy · accidenttly · accidentyl

Frequently Asked Questions

Is swapping "accident" for "accidently" ever safe?
No - they are not even the same part of speech. "accident" is a noun and "accidently" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "accident" or "accidently" show up more?
"accident" is the more common of the two: it sits at frequency rank #1,979 in our English list, against #34,363 for "accidently". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "accident" vs "accidently" is on the table, pick a follow-up below.

  • Full dictionary entry for "accident" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "accidently" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #303,973 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "accident" and "accidently" also get mixed up with nearby pairs, the highest-scored neighbour is "accidental vs accidently". 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 #303,973 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