Part of speech:
The definition of unctuous is oily, greasy or slippery in feel or character, or soft and rich garden soil.
(Archaic) Pleasingly mild, as in disposition or manner.
Performed or expressed without preparation or forethought:
Courteous and elegant; gracious and sophisticated.
The definition of fluent is having complete knowledge of a foreign language so you can express yourself in that language, or the ability to speak easily, flow freely or move smoothly.
Not disposed to be communicative.
The definition of taciturn is someone who doesn't say much.
Smooth-spoken, esp. in a plausible or flattering way
artfully persuasive in speech
Designating a poker hand to which no cards are drawn because of the unlikelihood of improving it
Relating to or occurring on or near the surface of the earth.
Characterized by ready but often insincere or superficial discourse
Having a fine texture:
Find another word for glib. In this page you can discover 32 synonyms, antonyms, idiomatic expressions, and related words for glib, like: unctuous, facile, offhand, suave, loquacious, fluent, tongue-tied, stuttering, uncommunicative, inarticulate and taciturn.