C16: probably from Middle Low German glibberich slippery
glib for learners of EnglishPowered by COBUILD (glɪb)
graded adjective & adjective
If you describe what someone says as glib, you disapprove of it because it implies that something is simple or easy, or that there are no problems involved, when this is not the case. [disapproval] ⇒ ...the glib talk of 'past misery'. ⇒ Mr. Lewis takes an insufferably glib attitude toward it all.
gliblygraded adverb & adverb [ADV with v] ⇒ We talk glibly of equality of opportunity.
They roared at that, the glib release, the gin slipping into their veins.Robert Wilson THE COMPANY OF STRANGERSEven Reba was looking vaguely askance at Jake's glib dismissal of a human life.Babson, Marian DEATH IN FASHIONIt was just detailed enough to be credible, if a bit glib.Val McDermid DEAD BEATWald seemed almost to glow in his moment; he was sincere, glib , earnest, arrogant.Leeson, Robert GENIE ON THE LOOSE