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
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
extremely large; exceedingly great
Nyeem's head is astronomical.
by katze_ila April 27, 2011
Frickin Huge.
This piece of pie is of astronomical proportion.
by Giggly2 October 05, 2010
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
A very large object, usually meaning huge, big, or gigantic. Many people use it in a sentence that has to do with a memorial statue, or just a large object in their house, or at an amusement park.
The sequoia tree was so astronomical, it was over 52,500 cubic feet!
by Akhaten October 27, 2014
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

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