Added 10 October 2026 rainless adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about rainless at Wordnik → Where our words come from → Lacking rain. a rainless month Related Words: drystormlesssnowlessweatherlessprecipitationlessfrostlessraincoatlessshowerlessthunderlessdroughtlessdewlesscalm Back to today's word