Seeing it written down, it looks dangerously close to glibness.
The men in The Group behave with glibness, condescension, and even brutality toward the Vassar grads.
Then as now, inside the Washington Beltway hubris and glibness go hand in hand.
I am ready to discourse on all or any of the great Abstractions with the glibness of the shallow mind.
At any rate, he proceeded with an unusual fluency and glibness.
Nevertheless despite the glibness with which he uttered it, he cringed and a flood of telltale color rose to his hair.
"I only said that the once," said Wully, shocked at her glibness in the uptake.
"Miss Baker is engaged," she announced, with the glibness of previous preparation.
Ethel was astounded at the glibness of invention which could instantly bring forth such an idea.
But this skill of tongue, this glibness of speech is hardly an affair of intellect at all.
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.