certainly

cer-tain-ly · adverb

imported

Definitions

adverb

  1. 1.

    Without doubt; definitely.

  2. 2.

    Used to agree emphatically to a request.

  3. 3.

    Used to emphasize a statement.

Phrases & expressions

  • •
    most certainly — emphatically yes
  • •
    almost certainly — very probably
  • •
    certainly not — absolutely not

Related words

Antonyms: maybe, perhaps, possibly
See also: certain, definitely, surely, undoubtedly
Synonyms: definitely, of course, surely, undoubtedly

Etymology

From Latin "certus" meaning settled or sure, with the adverbial suffix "-ly."