insulting or belittling, expressing disapproval, contempt, or disparagement of something, or otherwise having a negative connotation;
e.g. Her tone was considered to be too pejorative, and they doubted the sincerity of everything she said.
(noun)
a word or phrase that is intended to be insulting or belittling, express disapproval, disparagement, or contempt, or otherwise have a negative connotation;
e.g. He used a pejorative to express how poorly he thought of them.