Pejorative
A pejorative (also called a derogatory term, a slur, a term of disparagement) is a word or grammatical form expressing a negative connotation or a low opinion of someone or something, showing a lack of respect for someone or something. It is also used to express criticism, hostility, or disregard. Sometimes, a term is regarded as pejorative in some social or ethnic groups but not in others, or may be originally pejorative and eventually be adopted in a non-pejorative sense (or vice versa) in some or all contexts.
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