the.com/obscenity

means Material or conduct judged offensive to accepted standards of decency, especially in its depiction of sex or vulgarity.

from From Latin obscenus, meaning inauspicious, ill-omened, or offensive, which itself has disputed roots — possibly tied to caenum, 'filth,' though some scholars connect the ob- prefix to a sense of something 'set apart' or 'off-stage,' as in too repugnant to be shown. The word passed through French obscène into English by the 16th century, carrying the sense of something that violates moral or public decency — a judgment that has proven far easier to feel than to define.