Found 2 items, similar to groundless.
English → English (WordNet) Definition: groundless groundless adj : without a basis in reason or fact; “baseless gossip”; “the allegations proved groundless”; “idle fears”; “unfounded suspicions”; “unwarranted jealousy” [syn: baseless, idle, unfounded, unwarranted]
English → English (gcide) Definition: Groundless Groundless \Ground"less\, a. [AS. grundle['a]s bottomless.] Without ground or foundation; wanting cause or reason for support; not authorized; false; baseless; as, groundless fear; a groundless report, rumor, or assertion. -- Ground"less*ly, adv. -- Ground"less*ness, n.