P0651400 (pŭg-nā′shəs)adj. Combative in nature. See Synonyms at belligerent.[From Latin pugnāx, pugnāc-, from pugnāre, to fight, from pugnus, fist; see peuk- in Indo-European roots.]pug·na′cious·ly adv.pug·na′cious·ness, pug·nac′i·ty(-năs′ĭ-tē) n.Thesaurus