wrongful
adjective
[ ˈrɒŋfʊl ]
• (of an act) not fair, just, or legal.
• "he is suing the police for wrongful arrest"
Similar:
unjustified,
unwarranted,
unjust,
unfair,
undue,
undeserved,
uncalled for,
unreasonable,
unnecessary,
groundless,
indefensible,
inappropriate,
improper,
unlawful,
illegal,
illegitimate,
illicit,