underestimate

From Wiktionary

Word parts[change]

under- + estimate

Verb[change]

Plain form
underestimate

Third-person singular
underestimates

Past tense
underestimated

Past participle
underestimated

Present participle
underestimating

  1. When you underestimate something, you think of it to be smaller or less important than it really is
    Do not underestimate our new colleague, he used to be under the President's scholarship to study overseas.