overestimate

Definitions

To estimate something as being greater than its actual size, quantity, or importance.

To form an excessively high opinion of someone or something.

Examples

It is easy to overestimate the amount of time a project will take to complete.

Do not overestimate your opponent's strength, or you might lose your focus.

Synonyms

overrate overvalue overprize overcalculate exaggerate overstate

Antonyms

underestimate underrate undervalue understate minimize play down