Meaning of “vulgar” - Learner’s Dictionary

vulgar

adjective uk us /ˈvʌlɡər/
RUDE

rude and likely to upset or anger people, especially by referring to sex and the body in an unpleasant way:

NOT SUITABLE

not showing good judgment about what is suitable or pleasant to look at:

a vulgar shade of yellow
vulgarity uk us /vʌlˈɡærəti/ noun [ U ]

(Definition of “vulgar” from the Cambridge Learner’s Dictionary © Cambridge University Press)