defiant - WordReference.com Dictionary of English insubordinate, contumacious, refractory, recalcitrant, rebellious, insolent; daring. obedient. Collins Oppositional Defiant Disorder (ODD) Oppositional defiant disorder (ODD) is a type of disruptive behavior disorder in which children frequently defy authority with hostility, leading to serious Oppositional defiant disorder: current insight - PMC ODD was initially conceptualized as a behavioral problem. It is still not considered by many to be a true psychiatric disorder. However, ODD has Defiant: The POWs Who Endured Vietnam's Most Infamous Defiant: The POWs Who Endured Vietnam's Most Infamous Prison, The Women Who Fought for Them, and The One Who Never Returned [Townley, Alvin] on Amazon.com. DEFIANT Synonyms: 117 Similar and Opposite Words adjective · rebellious · rebel · stubborn · willful · wilful · contrary · adamant · disobedient · dogged · contumacious. DEFIANT TONE definition in American English DEFIANT TONE definition: If you say that someone is defiant , you mean they show aggression or independence by | Meaning, pronunciation, translations and