Added 10 October 2026 hard-shelled adjective Categories: Describing WordsObscure Words adjective ! Definition from WordNet 3.1, Princeton University. More about hard-shelled at Wordnik → Where our words come from → Of animals or plants that have a hard shell. Related Words: hardhard-lineharshroughtoughhardnesshardheadhardeningcockleshellhardpan Back to today's word