Added 10 October 2026 ponderosity /ˌpɒndəˈɹɒsɪti/ noun Categories: Describing WordsObscure Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about ponderosity at Wordnik → Where our words come from → The property of being large in mass. Related Words: ponderousnessmassivenessheftheftinessponderablenessprofoundnessprofundityoverthoughtfulnessmassinesspompousnessfoliosityportentosity Back to today's word