Added 2 October 2026 liveliness /ˈlaɪvlinəs/ noun Categories: ActionsDescribing WordsRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about liveliness at Wordnik → Where our words come from → The quality of being lively. Related Words: sprightlinessanimationlifespiritvibrancydynamismvigorvigourvitalityviabilityalertnessactivity Back to today's word