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Synonyms

overestimate

American  
[oh-ver-es-tuh-meyt, oh-ver-es-tuh-mit] / ˌoʊ vərˈɛs təˌmeɪt, ˈoʊ vərˈɛs tə mɪt /

verb (used with object)

overestimated, overestimating
  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.

overestimate British  

verb

  1. (tr) to value or estimate too highly

"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

noun

  1. an estimate that is too high

"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

Other Word Forms

  • overestimation noun

Etymology

Origin of overestimate

First recorded in 1815–25; over- + estimate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This is a far higher proportion than we would see if Wall Street analysts were equally likely to overestimate earnings as underestimate them.

From Barron's • Mar. 26, 2026

Unfortunately, investors overestimate their chances of picking those winners.

From The Wall Street Journal • Feb. 4, 2026

Armour's letter said that education was facing a gap of £250m, and he could not "overestimate the financial challenge we face in seeking to address our funding gap".

From BBC • Jan. 13, 2026

Because plants depend on this process to access nitrogen, the overestimate has meaningful consequences.

From Science Daily • Jan. 5, 2026

I've spent so much time making sure I don't underestimate my opponents that I've forgotten it's just as dangerous to overestimate them as well.

From "The Hunger Games" by Suzanne Collins