Synonyms of unwarranted

Adjective

1. indefensible, insupportable, unjustifiable, unwarrantable, unwarranted, inexcusable (vs. excusable)

usage: incapable of being justified or explained

2. baseless, groundless, idle, unfounded, unwarranted, wild, unsupported (vs. supported)

usage: without a basis in reason or fact; "baseless gossip"; "the allegations proved groundless"; "idle fears"; "unfounded suspicions"; "unwarranted jealousy"

3. undue, unjustified, unwarranted, unreasonable (vs. reasonable)

usage: lacking justification or authorization; "desire for undue private profit"; "unwarranted limitations of personal freedom"