Dictionary 1. (a.) Of considerable size or bulk.2. (a.) Being of reasonable or suitable size; as, sizable timber; sizable bulk. Thesaurus Gargantuan amplitudinous astronomical awesome big boundless bulky bumper colossal considerable cosmic enormous extensive galactic gigantic good goodly grand great healthy hefty huge immeasurable immense infinite king-size large large-scale major mammoth man-sized massive massy monster monstrous monumental mountainous numerous outsize overgrown prodigious respectable sensible smart spacious stupendous substantial tall tidy titanic tremendous vast voluminous weighty |