The Oxford Thesaurus An A-Z Dictionary of Synonyms - familiaradj.

1) well-known, common, commonplace, everyday, ordinary, current: That's a familiar melody. 2) frequent, usual, customary, habitual, routine, traditional: He strolled along his familiar route through the trees. 3) friendly, affable, close, intimate, sociable, social, free, free and easy, relaxed; over-friendly, overfree, overfamiliar, bold, forward, insolent, impudent, presumptuous, presuming, disrespectful, unreserved, unrestrained; informal, casual, cordial, unceremonious; Colloq chummy, Slang US and Canadian buddy-buddy, palsy-walsy: She began to get entirely too familiar. 4) familiar with. aware or conscious or cognizant of, knowledgeable about or of or in, conversant or acquainted with, no stranger to, on speaking terms with, up on or in, (well-) versed in, informed of or about, privy to, in the know about, au courant, au fait: Are you familiar with the latest theories in particle physics?