look up any word, like ratchet:
 
1.
Not making sense. Completely illogical and insane.
Choosing to get addicted to heroin was most definately nonsensical.
by Alan Thom June 13, 2008
 
2.
The opposite of being sensical; senseless.
"You are being totally nonsensical right now."
by JOhnnyPoop. December 12, 2011
 
3.
1. Having no meaning or direct purpose.
2.Preposterous or absurd
No one wanted to put up with his Non-sensical sandbox shenanigans.
by boy1002789 December 22, 2007
 
4.
Complete and utter nonsense; lack of thought.
The ability to say or do something totaly irrational.
Typicaly used by PostWhores, (PW++), to increase their forum post counts. These are usually found in banter sections. See Governments.
by Psychoman January 06, 2004