disparage

verb
UK /dɪˈspær.ɪdʒ/
US /dɪˈsper.ɪdʒ/

To say unkind things that make someone or something seem less good.

The coach told the players never to disparage their teammates, even after a loss.


OTHER MEANINGS

2. To speak of someone in a way that lowers their reputation.

The article unfairly disparaged the young scientist's work.

3. To treat something as if it has little value or importance.

He tended to disparage ideas that were not his own.

4. To express a low opinion of something in comparison with something else.

She disparaged the old methods while praising the new ones.