pe ‧ jo ‧ ra ‧ tive /pɪˈdʒɒrətɪv $ -ˈdʒɔː-, -ˈdʒɑː-/ BrE AmE adjective formal
[ Date: 1800-1900 ; Language: Late Latin ; Origin: pejoratus , past participle of pejorare 'to make worse' , from Latin pejor 'worse' ]
a word or expression that is pejorative is used to show disapproval or to insult someone:
For hard-line Republicans, the word ‘liberal’ had become a pejorative term.
—pejoratively adverb