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Synonyms

underestimate

American  
[uhn-der-es-tuh-meyt, uhn-der-es-tuh-mit, -meyt] / ˌʌn dərˈɛs təˌmeɪt, ˌʌn dərˈɛs tə mɪt, -ˌmeɪt /

verb (used with object)

underestimated, underestimating
  1. to estimate at too low a value, rate, or the like.

    Synonyms:
    miscalculate, misjudge, underrate, undervalue

verb (used without object)

underestimated, underestimating
  1. to make an estimate lower than that which would be correct.

noun

  1. an estimate that is too low.

underestimate British  
/ ˌʌndərˈɛstɪˌmeɪt /

verb

  1. to make too low an estimate of

    he underestimated the cost

  2. to think insufficiently highly of

    to underestimate a person

"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. too low an estimate

"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

Usage

Underestimate is sometimes wrongly used where overestimate is meant: the importance of his work cannot be overestimated (not cannot be underestimated )

Other Word Forms

  • underestimation noun

Etymology

Origin of underestimate

First recorded in 1805–15; under- + 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.

“Home buyers shouldn’t underestimate the kind of firepower they can gain by ‘adjusting’ their mortgages,” he wrote in a Friday note.

From Barron's

In addition, the dietary survey data relied on self-reported intake, which can underestimate sodium consumption, particularly from restaurant and takeaway foods.

From Science Daily

"I just think sight loss is underestimated," said Danni, as the family make considerations for Andy's condition every second of every day.

From BBC

“Exactly. Thank you for understanding. I was so intent on decoding Willa’s mission that I underestimated Fleetwood’s ability to move quickly, and now he’s here, and—” My voice cracks with emotion.

From Literature

Mr. Newman cites a series of studies showing that people dramatically underestimate how productive continued searching will be.

From The Wall Street Journal