The meaning of GUESSTIMATE is an estimate usually made without adequate information.

A guesstimate may be a first rough approximation pending a more accurate estimate, or it may be an educated guess at something for which no better information will become available.

GUESSTIMATE meaning: 1. an approximate calculation of the size or amount of something when you do not know all the…. Learn more.

Definition of guesstimate noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

GUESSTIMATE definition: to estimate without substantial basis in facts or statistics. See examples of guesstimate used in a sentence.

A guesstimate is an approximate calculation which is based mainly or entirely on guessing.

Nov 7, 2025 · guesstimate (plural guesstimates) (informal) An estimate that is hardly any better than a guess, often because it is based on insufficient or unreliable data. near synonym hyponym

guesstimate Add to list Other forms: guesstimates; guesstimated; guesstimating Definitions of guesstimate noun an estimate that combines reasoning with guessing synonyms: guestimate

guesstimate or guestimate n an estimate calculated mainly or only by guesswork vb

guesstimate, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary