UNWARRANTED

indefensible, insupportable, unjustifiable, unwarrantable, unwarranted

(adjective) incapable of being justified or explained

undue, unjustified, unwarranted

(adjective) lacking justification or authorization; “desire for undue private profit”; “unwarranted limitations of personal freedom”

baseless, groundless, idle, unfounded, unwarranted, wild

(adjective) without a basis in reason or fact; “baseless gossip”; “the allegations proved groundless”; “idle fears”; “unfounded suspicions”; “unwarranted jealousy”

Source: WordNet® 3.1

Etymology

Adjective

unwarranted (comparative more unwarranted, superlative most unwarranted)

Not warranted; being without warrant, authority, or guaranty; unwarrantable.

Unjustified, inappropriate or undeserved.

Source: Wiktionary

Un*war"rant*ed, a.

Definition: Not warranted; being without warrant, authority, or guaranty; unwarrantable.

Source: Webster’s Unabridged Dictionary 1913 Edition