obscene

adj. vulgar; improper, indecent (especially of sexual indecency); profane

Obscenity (in Latin obscenus, meaning "foul, repulsive, detestable", possibly derived from ob caenum, literally "from filth"). The term is most often used in a legal context to describe expressions (words, images, actions) that offend the prevalent sexual morality of the time.Despite its long formal and informal use with a sexual connotation, the word still retains the meanings of "inspiring disgust" and even "inauspicious; ill-omened", as in such uses as "obscene profits", "the obscenity of war", etc. It can simply be used to mean profanity, or it can mean anything that is taboo, indecent, abhorrent, or disgusting.
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Adjective
1. designed to incite to indecency or lust; "the dance often becomes flagrantly obscene"- Margaret Mead
(similar) indecent
2. offensive to the mind; "an abhorrent deed"; "the obscene massacre at Wounded Knee"; "morally repugnant customs"; "repulsive behavior"; "the most repulsive character in recent novels"
(synonym) abhorrent, detestable, repugnant, repulsive
(similar) offensive
3. suggestive of or tending to moral looseness; "lewd whisperings of a dirty old man"; "an indecent gesture"; "obscene telephone calls"; "salacious limericks"
(synonym) lewd, raunchy, salacious
(similar) dirty

adj. obscene, dirty, nasty; lewd, unprintable

(a/)
Offensive to chastity or modesty; expressing of presenting to the mind or view something which delicacy, purity, and decency forbid to be exposed; impure; as, obscene language; obscene pictures.
  

(a/)
Inauspicious; ill-omened.
  

(a/)
Foul; fifthy; disgusting.