Added 9 October 2026 sizeable adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about sizeable at Wordnik → Where our words come from → Fairly large in size. a sizable fortune Large in amount or extent or degree. it cost a considerable amount Related Words: considerablerespectabletidygoodishamplesizablelargegoodlybigheftymarkedsubstantive Back to today's word