Added 9 October 2026 pensiveness noun Categories: FeelingsDescribing WordsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about pensiveness at Wordnik → Where our words come from → Persistent morbid meditation on a problem. Deep serious thoughtfulness. Related Words: meditativenesscontemplativenessbroodinglanguishmentheavy-heartednesssentimentalitymoodphilosophymellowednesssensibilityfeelinglonging Back to today's word