Definition of guesstimate in English:

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(also guestimate) informal


Pronunciation: /ˈɡestəmət/
An estimate based on a mixture of guesswork and calculation.
Example sentences
  • Based on guesstimates of the likely renewed whale stock, this could mean Norway raising its annual catch from 550 minkes to 2,000, and possibly extending the hunting to other species.
  • Finally, I'm doing the guesstimates based on what I believe will be reported on a couple of these films.
  • The gross city product, for one thing, is not some precise state or federal government statistic, but a rough, inexact index of economic activity, a sort of guesstimate built upon multiple other guesstimates.


Pronunciation: /ˈɡestəˌmāt/
[with object]
Form an estimate of based on guesswork and calculation: the task is to guesstimate the total vote
More example sentences
  • He was born in 1855, so, by roughly guestimating his age in the picture, I'd say that it was taken in about 1890.
  • Organisers guesstimated some 4,400 were in attendance.
  • In 1997 the illegal pool of guns available to criminals was guesstimated at somewhere between 10,000 and 25,000.


1930s: blend of guess and estimate.

Words that rhyme with guesstimate

estimate, underestimate estimate, underestimate

For editors and proofreaders

Syllabification: guess·ti·mate

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