Added 10 October 2026 soundlessness noun Categories: Describing WordsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about soundlessness at Wordnik → Where our words come from → The property of making no sound. Related Words: quietnesssilencewordlessnessspeechlessnessquiettonelessnesswithoutnessunspokennessobjectlessnessnothingnesssmokelessnessvoicelessness Back to today's word