1. moderately good of its kind - a goodish wine • Similar to: good 2. large in amount or extent or degree - it cost a considerable amount - a goodly amount - received a hefty bonus - a respectable sum - a tidy sum of money - a sizable fortune • Syn: goodly, healthy, hefty, respectable, sizable, sizeable, tidy • Similar to: considerable • Derivationally related forms: sizeableness (for: sizeable), heftiness (for: hefty)