· incapable of being justified or explained
Synonym(s): indefensible, insupportable, unjustifiable, unwarrantable
· without a basis in reason or fact; "baseless gossip"; "the allegations proved groundless"; "idle fears"; "unfounded suspicions"; "unwarranted jealousy"
Synonym(s): baseless, groundless, idle, unfounded, wild
· lacking justification or authorization; "desire for undue private profit"; "unwarranted limitations of personal freedom"
Synonym(s): undue, unjustified