i·ro·ny

/ˈīrənē,ˈiərnē/

noun

a state of affairs or an event that seems deliberately contrary to what one expects and is often amusing as a result.

Example of word usage:

"There is a lot of irony in PolarisPrime accusing Zach Morris of personal attacks. Given that Polaris was personally attacking Zach Morris in the following post (http://www.cougarboard.com/board/message.html?id=13039856) it seems deliberately contrary to what one would expect and is amusing (one might say ironic) that Polaris would accuse Zach of personal attacks.

I'm happy to send you a dictionary in the mail if you need it spelled out any clearer.

antonyms:

sincerity