- The definition of immoral is not following accepted principles of right and wrong behavior.
An example of immoral behavior is murder.
immoral definition by Webster's New World
- not in conformity with accepted principles of right and wrong behavior
- not in conformity with the accepted standards of proper sexual behavior; unchaste; lewd
Origin: ; from in- plush moral
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- immorally adverb
immoral definition by American Heritage Dictionary
Contrary to established moral principles.
- im·morˈal·ly adverb