unwarrantable (adj.)

• actionable
• anarchic
• anarchistic
• anomic
• black-market
• bootleg
• chargeable
• contraband
• criminal
• felonious
• flawed
• illegal
• illegitimate
• illicit
• impermissible
• indefensible
• inexcusable
• inexpiable
• irregular
• lawless
• nonlegal
• outlaw
• outlawed
• punishable
• unauthorized
• unconscionable
• unconstitutional
• under-the-counter
• under-the-table
• undue
• unforgivable
• unjustifiable
• unlawful
• unofficial
• unpardonable
• unreasonable
• unwarranted
• wrongful