Added 9 October 2026 voluminosity noun Categories: Describing WordsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about voluminosity at Wordnik → Where our words come from → Greatness of volume. Related Words: voluminousnessfullnessvolublenessbuxomnessglutinosityvoluptuosityvaporosityvastnessplumpitudefoliositythiccnessveininess Back to today's word