pet ‧ u ‧ lant /ˈpetʃələnt, ˈpetʃʊlənt/ BrE AmE adjective
[ Date: 1500-1600 ; Language: French ; Origin: Latin , from petere ; ⇨ ↑ petition 1 ]
behaving in an unreasonably impatient and angry way, like a child
—petulantly adverb :
‘Which one?’ he demanded petulantly.
—petulance noun [uncountable]