'Shyster' definitions:

Definition of 'shyster'

From: WordNet
noun
A person (especially a lawyer or politician) who uses unscrupulous or unethical methods [syn: shyster, pettifogger]

Definition of 'Shyster'

From: GCIDE
  • Shyster \Shy"ster\, n. [Perh. from G. scheisse excrement.] A trickish knave; one who carries on any business, especially legal business, in a mean and dishonest way. [Slang, U.S.] [1913 Webster]

Synonyms of 'shyster'

From: Moby Thesaurus