Definition of petulancy in English:

petulancy

noun

rare
  • Childish impatience or sulkiness; irritability, tetchiness.

Origin

Mid 16th century (in an earlier sense). From classical Latin petulantia impudence, rudeness from petulant-, petulāns + -ia; compare -ancy.

Pronunciation

petulancy

/ˈpɛtjʊlənsi/ /ˈpɛtjʊl(ə)nsi/ /ˈpɛtʃʊlənsi/