underestimate

under- +‎ estimate

• verb: IPA^(key): /ʌndɚˈɛs.tɨ.meɪt/
• noun: IPA^(key): /ʌndɚˈɛs.tɨ.mɨt/, /ʌndɚˈɛs.tɨ.mət/

underestimate (third-person singular simple present underestimates, present participle underestimating, simple past and past participle underestimated)

1. (transitive) To perceive (someone or something) as having a lower value, quantity, worth, etc., than what he/she/it actually has.

• belittle
• misunderestimate
• misjudge
• make light of

• (to perceive as having lower value): overestimate

• nobody ever went broke underestimating the intelligence of the American people
• nobody ever went broke underestimating the taste of the American people

underestimate (plural underestimates)

1. An estimate that is too low.

• underestimation

• overestimate