A statement or proposition that, despite sound (or apparently sound) reasoning from acceptable premises, leads to a conclusion that seems senseless, logically unacceptable, or self-contradictory.
Irony in which a person says or writes one thing and means another, or uses words to convey a meaning that is the opposite of the literal meaning. Contemporary definitions for verbal irony Expand.
Irony involving a situation in which actions have an effect that is opposite from what was intended, so that the outcome is contrary to what was expected. Examples from the web for situational irony Expand. By some definitions, situational irony and cosmic irony are not irony at all.