unwarranted
I
adjective
arbitrary, baseless, excessive, fulsome, groundless, immoderate, improper, indefensible, inexcusable, inordinate, needless, objectionable, outrageous, overmuch, superabundant, superfluous, supernumerary, unauthorized, uncalled-for, unconscionable, undue, unentitled, unfair, unfounded, unjust, unjustifiable, unjustified, unlawful, unnecessary, unreasonable, unsanctioned, unwarrantable, wrongful
II
index
baseless, disproportionate, exorbitant, extreme (exaggerated), ill-founded, illegal, illicit, inconsequential, inexcusable, irregular (improper), irrelevant, lawless, nonessential, outrageous, profuse, prohibitive (costly), sophistic, ultra vires, unauthorized, unconscionable, undue (excessive), unfounded, unjust, unlawful, unreasonable, unsound (fallacious)
Burton's Legal Thesaurus.
William C. Burton.
2006