Unbiddable is synonymous with stubborn, headstrong, defiant, disobedient, unruly, ungovernable, intractable, wayward, and recalcitrant. These adjectives describe someone or something that is difficult or impossible to control or manage. A person who is unbiddable may refuse to follow orders or directions, act impulsively, or be completely unresponsive to authority figures. An unruly child may be unbiddable and refuse to listen to their parents, while a horse that is difficult to train may also be described as unbiddable. Regardless of the context, the word unbiddable carries a strong connotation of resistance and a lack of obedience.