oppositional
/ˌɒpəˈzɪʃənəl/ · op·po·si·tion·al
adjective
- Relating to or characterized by opposition; resistant or defiant. The child displayed oppositional behavior when asked to tidy his room.
- Pertaining to the psychological condition known as Oppositional Defiant Disorder. Therapists often treat oppositional symptoms with behavioral strategies.
noun
- A person who opposes; an opponent. The campaign's oppositional was vocal in the debates.
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Did you know? The term ‘oppositional’ gave its name to the psychiatric diagnosis Oppositional Defiant Disorder, first formally described in the 1960s.