underestimate - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

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English definition of “underestimate”

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underestimate

verb uk   /ˌʌn.dəˈres.tɪ.meɪt/  us   /-dɚˈes-/

underestimate verb (AMOUNT)

B2 [I or T] to fail to guess or understand the real cost, size, difficulty, etc. of something: Originally the builders gave me a price of €2,000, but now they say they underestimated and it's going to be at least €3,000. One shouldn't underestimate the difficulties of getting all the political parties to the conference table.
Opposite
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underestimate verb (PERSON)

C1 [T] to fail to understand how strong, skilful, intelligent, or determined someone, especially a competitor, is: Never underestimate your opponent!
underestimate
noun [C] uk   us   /-mət/
Clearly £25 was a serious underestimate.
(Definition of underestimate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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