Definition of Guesstimate:
An estimate based on a mixture of guesswork and calculation.
Form an estimate of based on guesswork and calculation.
Approximation based on a mixture of broad assumptions and computations.
Synonyms of Guesstimate
Estimate, Calculate, Approximate, Make a guess at, Make an estimate of, Hypothesis, Theory, Prediction, Postulation, Conjecture
Meaning of Guesstimate & Guesstimate Definition