Added 10 October 2026 tardiness noun Categories: Describing WordsRare Words In Latin: tarditās Wiktionary noun ! Definition from WordNet 3.1, Princeton University. More about tardiness at Wordnik → Where our words come from → The quality or habit of not adhering to a correct or usual or expected time. Related Words: latenesslagdilatorinessslownesssluggishnessdelaygloombackwardnessslippagelengthbacklogretardation Back to today's word