Entry 1 sense Webster, 1913 Contrariness · Con·tra·ri·ness · IPA /kˈɑntrɛriːnəs/ 01 n. state or quality of being contrary; opposition; inconsistency; contrariety; perverseness; obstinacy. 1. state or quality of being contrary; opposition; inconsistency; contrariety; perverseness; obstinacy.