Added 10 October 2026 impulseless adjective adjective ! Definition from Wiktionary (CC BY-SA). More about impulseless at Wordnik → Where our words come from → Devoid of impulses. Origin From impulse + -less. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: drivelesssensationlessinteractionlessreactionlessinstinctlessintuitionlessappetitelessreflexlessstatuslesssenselessillusionlessconceptless Back to today's word