The Collaborative International Dictionary
Obscene \Ob*scene"\, a. [L. obscenus, obscaenus, obscoenus, ill looking, filthy, obscene: cf. F. obsc['e]ne.]
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Offensive to chastity or modesty; expressing or presenting to the mind or view something which delicacy, purity, and decency forbid to be exposed; impure; as, obscene language; obscene pictures.
Words that were once chaste, by frequent use grew obscene and uncleanly.
--I. Watts. -
Foul; fifthy; disgusting.
A girdle foul with grease binds his obscene attire.
--Dryden (Aeneid, vi. 417). -
Inauspicious; ill-omened. [R.] [A Latinism]
At the cheerful light, The groaning ghosts and birds obscene take flight.
--Dryden.Syn: Impure; immodest; indecent; unchaste; lewd. [1913 Webster] -- Ob*scene"ly, adv. -- Ob*scene"ness, n.
Wiktionary
n. Quality of being obscene.