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Definition of underestimate - 3 dictionary results

un⋅der⋅es⋅ti⋅mate

  [v. uhn-der-es-tuh-meyt; n. uhn-der-es-tuh-mit, -meyt] verb, -mat⋅ed, -mat⋅ing, noun
Use underestimate in a Sentence
–verb (used with object)
1. to estimate at too low a value, rate, or the like.
–verb (used without object)
2. to make an estimate lower than that which would be correct.
–noun
3. an estimate that is too low.
Origin:
1805–15; under- + estimate

Related forms:
un⋅der⋅es⋅ti⋅ma⋅tion, noun

Synonyms:
1. undervalue, underrate, misjudge, miscalculate.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To underestimate
un·der·es·ti·mate   (ŭn'dər-ěs'tə-māt')   
tr.v.   un·der·es·ti·mat·ed, un·der·es·ti·mat·ing, un·der·es·ti·mates
To make too low an estimate of the quantity, degree, or worth of.
n.   (-ěs'tə-mĭt)
An estimate that is or proves to be too low.
un'der·es'ti·ma'tion n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

underestimate  (v.)
1812, "to estimate at too low an amount," from under + estimate (v.). Meaning "to rank too low, undervalue" is recorded from 1850.
Online Etymology Dictionary, © 2001 Douglas Harper
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