adj. 25B6; adjective SLICK, pat, plausible; smooth-talking, fast-talking, silver-tongued, smooth, urbane, having kissed the Blarney Stone; disingenuous, insincere, facile, shallow, superficial, flippant; informal flip, sweet-talking.
sincere.
GLIB
Meaning of GLIB in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012