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3.
extremely large; exceedingly great
Nyeem's head is astronomical.
by katze_ila April 27, 2011
 
1.
So fucking awesome that you dont even know how fucking awesome it is cause if you did your fucking head will EXPLODE
Tom:Dude Carla sucked my dick so good,IT FELT ASTRONOMICAL

Cesar:You serious?How much did she cost?
by TwitterCessarMF August 22, 2010
 
2.
large beyond comparison. Just BIG.
I have an astronomical amount of work to do for the end of the semester.
by Kayode May 03, 2007
 
4.
Frickin Huge.
This piece of pie is of astronomical proportion.
by Giggly2 October 05, 2010
 
5.
derives from the word epic....but is way better.
used when in a state of awe or amazement.
"The movie ZombieLand is astronomical"
by Chikipoo April 30, 2010
 
6.
intensly amazing that everyone is amazed by it. also used as astro.

a better word for epic because epic has been over-used.
Dude, The Dark Knight was astronomical!
by crazybeansss May 05, 2009