Adjective - The antithesis of reasonable. Completely ridiculous in a way that is not intentional.
Noun - The state of being caleedity; random insanity.
Verb (to caleedity, caleedities, caleeditied, etc.) - To expose someone to caleedity.
noun - The compiler began to spit out all kinds of caleedity on the screen.
verb - That woman caleedities me all the time.