MOLDY Meaning of MOLDY in English [moldy] adj mold.i.er ; -est (14c) 1: of, resembling, or covered with a mold-producing fungus 2. a: being old and moldering: crumbling b: antiquated, fusty "~ tradition" -- mold.i.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012