inglorious, dishonorable - not bringing honor and glory; "some mute inglorious Milton here may rest"

dishonest, dishonorable - deceptive or fraudulent; disposed to cheat or defraud or deceive

unjust - violating principles of justice; "unjust punishment"; "an unjust judge"; "an unjust accusation"

ignoble - completely lacking nobility in character or quality or purpose; "something cowardly and ignoble in his attitude"; "I think it a less evil that some criminals should escape than that the government should play an ignoble part"- Oliver Wendell Holmes, Jr.

disreputable - lacking respectability in character or behavior or appearance

unworthy - lacking in value or merit; "dispel a student whose conduct is deemed unworthy"; "unworthy of forgiveness"

wrong - contrary to conscience or morality or law; "it is wrong for the rich to take advantage of the poor"; "cheating is wrong"; "it is wrong to lie"

ignoble - completely lacking nobility in character or quality or purpose; "something cowardly and ignoble in his attitude"; "I think it a less evil that some criminals should escape than that the government should play an ignoble part"- Oliver Wendell Holmes, Jr.