Added 10 October 2026 sonorousness noun Categories: Describing WordsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about sonorousness at Wordnik → Where our words come from → Having the character of a loud deep sound; the quality of being resonant. Origin From sonorous + -ness. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: sonorityresonancereverberanceringingvibrancyplangencysonorositysonorousitysonorietysonorancysonancesonorescence Back to today's word