What is a synonym for "glib"?

Common synonyms include: facile, fluent, ready, smooth, superficial, talkative.

Glib

//ɡlɪb// adj, noun, verb, slang

adj, noun, verb, slang ·Common ·High school level

Noun

1
A person's mouth or tongue. UK, obsolete, slang
""Well, Sal, you mum your dubber pretty generally, but when you do slacken your glib you may as well do it civilly.""
2
A mass of matted hair worn down over the eyes, formerly common in Ireland. historical
"Whom when she saw in wretched weedes disguiz'd, / With heary glib deform'd and meiger face, / Like ghost late risen from his grave agryz'd, / She knew him not […]"

Verb

1
To make smooth or slippery. transitive
"1628, Joseph Hal, “Christian Liberty Laid Forth,” in The Works of the Right Reverend Father in God, Joseph Hall, D.D., Volume V, London: Williams & Smith, 1808, p. 366, https://books.google.ca/books?id=8iUBAAAAQAAJ&printsec=frontcover#v=onepage&q&f=false There is a drunken liberty of the Tongue; which, being once glibbed with intoxicating liquor, runs wild through heaven and earth; and spares neither him that is God above, nor those which are called gods on earth."
2
To castrate; to geld; to emasculate. obsolete
"Fourteen they shall not see To bring false generations. They are co-heirs; And I had rather glib myself than they Should not produce fair issue."

Adjective

1
Having a ready flow of words but lacking thought or understanding; superficial; shallow.
"A much more thorough examination of this period is essential, and no glib answers should be accepted as good coin."
2
Smooth or slippery. dated
"a sheet of glib ice"
3
Artfully persuasive but insincere in nature; smooth-talking, honey-tongued, silver-tongued.
"a glib tongue; a glib speech"
4
Snarky or unserious in a disrespectful way.
"Its style is both open and arch, never verging on glib camp but always a little removed, reducing large emotions to small observations and thereby making them all the more effective."