adjective, glib·ber, glib·best.
- readily fluent, often thoughtlessly, superficially, or insincerely so: a glib talker; glib answers.
- easy or unconstrained, as actions or manners.
- Archaic. agile; spry.
adjective glibber or glibbest
- fluent and easy, often in an insincere or deceptive way
1590s, “smooth and slippery,” possibly a shortening of obsolete glibbery “slippery,” which is perhaps from Low German glibberig “smooth, slippery,” from Middle Low German glibberich, from or related to glibber “jelly.” Of words, speakers, etc., from c.1600. Related: Glibly; glibness.