Fighting Fight"ing, a. 1. Qualified for war; fit for battle. An host of fighting men. --2 Chron. xxvi. 11. 2. Occupied in war; being the scene of a battle; as, a fighting field. --Pope. A fighting chance, one dependent upon the issue of a struggle. [Colloq.] Fighting crab (Zo["o]l.), the fiddler crab. Fighting fish (Zo["o]l.), a remarkably pugnacious East Indian fish (Betta pugnax), reared by the Siamese for spectacular fish fights.