Definition of "pouty"

‘My dear Doctor,’ said he, ‘this wrathful man thinks you have been unsuccessful, and is primed to be pouty; let us enjoy the pleasure of discovery by a little delay; […] ’

1799, Cassandra Leigh Cook, Battleridge, London: Cawthorn, Volume 1, Chapter 5, p. 77

Long ago when Jade used to come for holiday visits, Margaret found her awkward and pouty, but now that she was grown up, she was pretty and a lot of fun.

1981, Tony Morrison, Tar Baby‎, New York: New American Library, published 1983, page 72

Was there ever a baby seen, or even read of, like that baby! […] he is a little pouty about the mouth—but such a mouth!

1851, Donald Grant Mitchell (as Ik. Marvel.), Dream Life, New York: Scribner, Chapter 5, pp. 239-240

Those girls, who could have been her daughters, were beautiful. […] Their mouths were pouty little cupid’s bows.

1969, Maya Angelou, chapter 16, in I Know Why the Caged Bird Sings‎, New York: Random House, page 104

a pale brunette whose pouty Maybelline red lips put Scarlett O’Hara’s sneer to shame

2016, Paul Beatty, chapter 6, in The Sellout‎, New York: Picador, page 84

Where other actresses offer us a sort of pouty boredom which yet seeks to flirt with the audience, Huppert presents severity, anger, and an irritation raised to the condition of nausea.

2002, Julian Barnes, Something to Declare‎, London: Picador, page 278

Only their full red lips bore similarity, the father’s bubbly wedges endowing him with a drag queen’s pouty glamour.

2006, Gary Shteyngart, Absurdistan, London: Granta, 2008, Chapter 27, p. 214

He suffered on his journey, delivering a pouty soliloquy on hunger, cold, and wild beasts.

2016, Colson Whitehead, The Underground Railroad‎, London: Fleet, page 157