overestimate

[verb oh-ver-es-tuh-meyt; noun oh-ver-es-tuh-mit]
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verb (used with object), o·ver·es·ti·mat·ed, o·ver·es·ti·mat·ing.
  1. to estimate at too high a value, amount, rate, or the like: Don't overestimate the car's trade-in value.
  2. to hold in too great esteem or to expect too much from: Don't overestimate him—he's no smarter than you are.
noun
  1. an estimate that is too high.

Origin of overestimate

First recorded in 1815–25; over- + estimate
Related formso·ver·es·ti·ma·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for overestimate

overestimate

verb (ˌəʊvərˈɛstɪˌmeɪt)
  1. (tr) to value or estimate too highly
noun (ˌəʊvərˈɛstɪmɪt)
  1. an estimate that is too high
Derived Formsoverestimation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012