maghanap ng salita, tulad ng cleveland steamer:
 
1.
Rad and fantastic combined making a force to be rekoned with. If you are radtastic you are the best.
That movie was so radtastic i bet it will get great reviews
ayon kay sctso ika-28 ng Abril, 2003
 
2.
(adj) Something so great, or tremendous, and unbelievable that it supersedes all other synonyms of both good and extraordinary.
Although she was nothing more than an iconoclastic misanthrope, she had to admit that her adversary's discovery was radtastic.
ayon kay Bradley Darren Davidson ika-14 ng Nobyembre, 2006
 
3.
to be rad, and fantastic (not in a gay way)
man that game the other day was radtastic
ayon kay 1337solidsnake117 ika-03 ng Mayo, 2007
 
4.
amazing; of top-notch quality.
Dude, last night's shenanigans were radtastic, were they not?
ayon kay AlanJohn ika-21 ng Enero, 2008
 
5.
The most rad'st thing that can come up to mind
Dang T.A.K is like the most Radtastic skate crew out there man!
ayon kay Devin Starr ika-15 ng Mayo, 2009
 
6.
something so fricken cool you couldm't even use the normal word "rad" to describe it!!
that was SO radtastic!

you are very radtastic
ayon kay asdfcodyjkl; ika-19 ng Hulyo, 2008
 
7.
To be Incredibly amazing, both RADical and fanTASTIC at the same time.
Bob: Hey, Guess what cindell, it's friday.

Cindell: AGAIN??? ARE YOU SERIOUS??

Bob: yep.

Cindell: OH MAN, THAT's SO RADTASTIC, I HARDLY KNOW WHAT TO DO WITH MYSELF!!
ayon kay Cindell Corbeil ika-19 ng Nobyembre, 2007