Sentence:  An article is not <WSD>obscene</WSD> simply because it is repulsive or filthy. The prosecution must prove that its tendency is strong enough actually to deprave and corrupt a significant proportion of its likely audience; in other words, to pervert or corrupt their morals sufficiently for it to constitute a public menace. 
Meaning of the word marked with <WSD> tags:  Liable to deprave or corrupt