Inexpedient. Whatever in the long run and with regard to the greater number of instances men find to be generally inexpedient comes to be considered wrong, wicked, immoral. If man's notions of right and wrong have any other basis than this of expediency; if they originated, or could have originated, in any other way; if actions have in themselves a moral character apart from, and nowise dependent on, their consequences -- then all philosophy is a lie and reason a disorder of the mind.

Not moral; inconsistent with rectitude, purity, or good morals; contrary to conscience or the divine law; wicked; unjust; dishonest; vicious; licentious; as, an immoral man; an immoral deed.

violating principles of right and wrong

not adhering to ethical or moral principles; "base and unpatriotic motives"; "a base, degrading way of life"; "cheating is dishonorable"; "they considered colonialism immoral"; "unethical practices in handling public funds"

morally unprincipled; "immoral behavior"

characterized by wickedness or immorality; "led a very bad life"

An Immoral act is one that is considered bad or wrong.

A description levied against anyone who doesn’t believe the same religion as the speaker, no matter how kind, fair, and honest the person actually is. (see moral)