unambiguousvsunambiguouslyWhat's the difference?

Quick tell: unambiguous is a adjective, unambiguously is an adverb, so they fill different roles in a sentence.

Which to use

“unambiguous” is an adjective and “unambiguously” is an adverb - they look or sound alike but fill different roles in a sentence.

#33,468
“unambiguous” frequency rank
#41,445
“unambiguously” frequency rank
74913
confusion score

Side-by-Side Comparison

Feature unambiguous unambiguously
Definition Clear, and having no uncertainty or ambiguity. In a manner that is not ambiguous; leaving no doubt; clearly

Where the spellings diverge

Shared letters are muted; the letters that actually set unambiguous and unambiguously apart are highlighted. They share 11 letters in sequence, which is exactly why the eye skips the difference.

11 ch
unambiguous
13 ch
unambiguously

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: unambiguous is anadjective and unambiguouslyanadverb. On the page they differ by 2 extra letter(s) - “unambiguous” sits inside “unambiguously”. Our composite confusion score for this pair is 74913, derived from the frequency rank of both members and their visual similarity.

unambiguous is recorded at frequency rank #33,468, classified as anadj. unambiguously is at rank #41,445, 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 74913, this pair ranks #34,799 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of unambiguous vs unambiguously

Shared letters: abgimnosu. Private to "unambiguous": -. Private to "unambiguously": ly.

"unambiguous" · 11 letters · shape VCVCCVCVVVC  ·  "unambiguously" · 13 letters · shape VCVCCVCVVVCCV

Known mistypes of this pair

  • unambiguousnuambiguous · uanmbiguous · unabmiguous · unambbiguous · unambgiuous · unambigguous · unambigouus · unambiguosu
  • unambiguouslynuambiguously · uanmbiguously · unabmiguously · unambbiguously · unambgiuously · unambigguously · unambigouusly · unambiguosuly

Frequency comparison

unambiguous#33,468
unambiguously#41,445

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "unambiguous" and "unambiguously" be used interchangeably?
No - they are not even the same part of speech. "unambiguous" is an adjective and "unambiguously" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "unambiguous" or "unambiguously"?
"unambiguous" is the more common of the two: it sits at frequency rank #33,468 in our English list, against #41,445 for "unambiguously". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering unambiguous vs unambiguously

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “unambiguous”; for an adverb, it's “unambiguously”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “unambiguous” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list