1. most inclined to push out one’s lips in displeasure or sulkiness; most sulky or petulant
Usage: superlative form of pouty

Examples

• She gave him her poutiest look when he said no to ice cream.
• The poutiest child in the group refused to join the game.
• His poutiest expression appeared whenever he didn’t get his way.
• Even at her poutiest, she was still adorable.
• The toddler’s poutiest moments usually happened right before naptime.
• She practiced her poutiest face in the mirror.