I found a word admonition and a verb admonish. I can’t figure it out. Which is an almost an exact antonym I believe in. I would simply be correct and say im delusional not a good word, but what based on a genuine or more than one antonym?

Noun definition: advice with a hint of scolding, a warning not to do anything.

Verb definition: to advise or caution against something.

So, it can be a notice against a person or a product as well I believe.