[glib] adj glib.ber ; glib.best [prob. modif. of LG glibberig slippery] (1593) 1 a: marked by ease and informality: nonchalant b: showing little forethought or preparation: offhand "~ answers" c: lacking depth and substance: superficial "~ solutions to knotty problems"
2. archaic: smooth, slippery
3: marked by ease and fluency in speaking or writing often to the point of being insincere or deceitful "a ~ politician" -- glib.ly adv -- glib.ness n