pejorative

adj. vilifying, disrespectful, scornful; declining, depreciatory; changing for the worse, calumniatory

A word is a term of derision, or a phrase is pejorative, if it implies contempt or disapproval. The adjective pejorative is synonymous with derogatory, derisive, and dyslogistic. When used as an adjective, pejorative has two meanings: (1) tending to make or become worse, and (2) tending to disparage or belittle. When used as a noun, pejorative means "a belittling or disparaging word or expression".
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Adjective
1. expressing disapproval; "dyslogistic terms like `nitwit' and `scalawag'"
(synonym) dyslogistic, dislogistic
(similar) uncomplimentary

adj. pejorative, depreciatory, calumniatory, disrespectful, scornful

adj. pejorative, disrespectful