Added 9 October 2026 wistfulness noun Categories: FeelingsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about wistfulness at Wordnik → Where our words come from → A sadly pensive longing. Origin From wistful + -ness. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: wishfulnesswispinesswitfulnesswizenednesswisenesswartinesswrynesswaifishnessdewinessweepinesswaterinessbewilderedness Back to today's word