radtastic 

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

radtastic by sctso April 28, 2003

Radtastic 

(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.

Radtastic by Bradley Darren Davidson November 14, 2006

Radtastic 

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!

Radtastic by Devin Starr May 16, 2009

Radtastic 

something so fricken cool you couldm't even use the normal word "rad" to describe it!!

that was SO radtastic!

you are very radtastic

Radtastic by asdfcodyjkl; August 14, 2008

Radtastic 

Cooler than cooler but not as cool as awesomesauce

"That was radtastic"

Radtastic by Penispenispenis69 March 25, 2020

radtastic 

amazing; of top-notch quality.

Dude, last night's shenanigans were radtastic, were they not?

radtastic by AlanJohn January 21, 2008

radtastic 

to be rad, and fantastic (not in a gay way)

man that game the other day was radtastic

radtastic by 1337solidsnake117 May 16, 2007