vulgar

Crudely indecent.

Deficient in taste, consideration, or refinement.

Given to crudity or tastelessness, as in one’s behavior.

Offensively excessive in self-display or expenditure; ostentatious.

Spoken by or expressed in language spoken by the common people; vernacular.

Of or associated with the great masses of people; common.

Of or pertaining to the common people; suited to or practised among the multitude; plebeian: as, vulgar life; vulgar sports.

Common; in general use; customary; usual; ordinary.

Hence, national; vernacular: as, the vulgar tongue; the vulgar version of the Scriptures; in zoology and botany, specifically, vernacular or trivial, as opposed to scientific or technical, in the names or naming of plants and animals. See pseudonym, 2.