'Smooth-tongued' definitions:

Definition of 'smooth-tongued'

(from WordNet)
adjective
Artfully persuasive in speech; "a glib tongue"; "a smooth-tongued hypocrite" [syn: glib, glib-tongued, smooth-tongued]

Definition of 'Smooth-tongued'

From: GCIDE
  • Smooth-tongued \Smooth"-tongued`\, a. Having a smooth tongue; plausible; flattering. [1913 Webster]