derogatory
dih-ROG-uh-tor-eeadjMeaning showing a low opinion; insulting
Memory hook de-ROG: the rude FROG’s names. The rude frog croaks a nasty name at every snail that passes: “Slowpoke!” His remarks are derogatory.
The referee warned the player to stop making derogatory comments about the other team.
In context The review was not merely critical but derogatory; instead of discussing the book, it called the author lazy and foolish.
Similar insulting, disparaging, disrespectful, pejorative
Opposite complimentary, flattering, respectful
From Latin derogare, “to take away from, detract”: de- (away) + rogare (to ask).