as likely as not

English

Adverb

as likely as not (not comparable)

  1. As has even chances of being true or happening; as has a fifty-fifty likelihood; (often loosely) probably.
    Synonym: as like as not
    Near-synonyms: (broadly synonymous) more than likely, in all likelihood, in all probability
    • 1922, Agatha Christie, “Chapter 16”, in The Secret Adversary:
      "You're tying my hands," complained Tommy. "It's a very delicate affair, and the other fellow will muff it up as likely as not, and then where shall I be? I don't believe one of you has got an ounce of tact."

See also