Added 10 October 2026 colossalness noun noun ! Definition from Wiktionary (CC BY-SA). More about colossalness at Wordnik → Where our words come from → The quality of being colossal. Origin From colossal + -ness. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: colossalitysupercolossuscolossusgrandiosenessenormousnessgrandiositygrandnessbignessbehemothgrandeurenormitysupermassiveness Back to today's word