1) As is 2) Baseless 3) Excessive 4) Extreme 5) Groundless 6) Inexcusable 7) Insupportable 8) Needless 9) Uncalled-for 10) Undeserved 11) Undue 12) Unfair 13) Unfounded 14) Unjust 15) Unjustifiable 16) Unjustified 17) Unprovoked 18) Unreasonable 19) Unsupported 20) Unwarrantable 1) Excessive 2) Gratuitous 3) Indefensible 4) Inexcusable 5) Insupportable 6) Needless 7) Superfluous 8) Too much 9) Uncalled for 10) Uncalled-for 11) Unjustifiable 12) Unjustified 13) Unnecessary 14) Unreasonable 15) Unwarrantable 16) Wanton 
• (a.) Not warranted; being without warrant, authority, or guaranty; unwarrantable.
[SAT terms] without a basis in reason or fact incapable of being justified or explained