Disagreeable to the senses: an offensive odor. Causing anger, displeasure, resentment, or affront: an offensive gesture. Making an attack: The offensive troops gained ground quickly. Of, relating to, or designed for attack: offensive weapons. Sports Of or relating to a team having possession of a ball or puck: the offensive line. An attitude or position of attack: go on the offensive in chess. An attack or assault: led a massive military offensive.