hot adjective 1. having a high degree of heat or a high temperature. "it was hot inside the hall" synonyms: very warm, balmy, summery, tropical, scorching, broiling, searing, blistering; More 2. (of food) containing or consisting of pungent spices or peppers that produce a burning sensation when tasted. "a very hot dish cooked with green chili" synonyms: spicy, spiced, highly seasoned, peppery, fiery, strong.