underrate

verb
UK /ˌʌndəˈreɪt/
US /ˌʌndərˈreɪt/

To think someone or something is not as good as it really is.

Don't underrate her—she's the best player on the team.


OTHER MEANINGS

2. To set too low a value or price on something.

The painting was underrated at the auction and sold cheaply.

3. To fail to recognize the true worth or ability of a person.

He underrated his little brother's math skills.

4. To think less of something than it deserves.

Many people underrate the importance of a good night's sleep.