D defs.my
Entry 1 sense Webster, 1913

Guesser

/gĕs'-ẽr/ · Guess·er · IPA /ɡˈɛsər/
01 n. One who guesses; one who forms or gives an opinion without means of knowing.
  1. 1.
    One who guesses; one who forms or gives an opinion without means of knowing.