underestimate

verb

un·​der·​es·​ti·​mate ˌən-dər-ˈe-stə-ˌmāt 

underestimated; underestimating; underestimates

transitive verb

1

: to estimate as being less than the actual size, quantity, or number

underestimated the cost

2

: to think of as being lower in ability, influence, or value than is accurate : underrate

Her talent has always been underestimated.

underestimate

ˌən-dər-ˈe-stə-mət 

noun

underestimation

ˌən-dər-ˌe-stə-ˈmā-shən 

noun

Synonyms of underestimate

• minimize
• underrate
• undervalue

Examples of underestimate in a Sentence

The city underestimated the cost of the new building.

The number of people in the crowd was underestimated by 5,000.

Never underestimate the importance of a good education.

Her talent has always been underestimated.

Recent Examples on the Web

The Ebola outbreak that began in DR Congo is becoming a continental crisis after authorities initially underestimated its spread, the head of Africa’s public health agency told Semafor as new cases were reported as far afield as Nigeria. — Ruben Nyanguila, semafor.com, 23 Oct. 2026

The study’s results reveal that the initial 2024 exit polls actually underestimated Latinos’ Trump support, with the Republican candidate tracking at 46% of the Latino vote on election day. — Carlos De Loera, Los Angeles Times, 21 Oct. 2026

The announcement followed Interior Minister Laurent Nuñez's acknowledgment that authorities had underestimated the unrest and lost control in some cities during Saturday's protests. — Aidan Stretch, CBS News, 20 Oct. 2026

Republicans are hoping the polls this year are underestimating their support, which has happened in the past. — Kayla Hayempour, NBC news, 19 Oct. 2026

Word History

First Known Use

1792, in the meaning defined at sense 1

Rhymes for underestimate

• borosilicate
• decontaminate
• deoxycholate
• deteriorate
• differentiate
• diisocyanate
• dinoflagellate
• excommunicate
• incapacitate
• insubordinate
• intercorporate
• interpenetrate

Kids Definition

underestimate

verb

un·​der·​es·​ti·​mate ˌən-də-ˈres-tə-ˌmāt 

1

: to estimate as being less than the actual size, quantity, or number

underestimate the cost of a new building

2

: to place too low a value on : underrate

underestimate an opponent

underestimate

-mət 

noun

underestimation

-ˌres-tə-ˈmā-shən 

noun