radtastic 

fully radical;rad and fantastic at the point of full expression at the same time.

That show last night was fucking radtastic, dude!!

radtastic by Andy-Fuckin-V!!!! May 11, 2012

RADTASTICALEST! 

The radest rad ever to exist in the RADTASTICAL HISTORY OF THE RADTASTICALEST!! past.

“Omg, have you heard of the RADTASTICALEST!! BAND, NORVANA! NIVANGA! NIRVANA!!!!”

-The idiot who took their time to make this for their girlfriend, and still don’t regret it in any way. :,(

RADTASTICALEST! by Absurdsimp August 23, 2021

RADTASTICALEST 

It’s the radest word to ever exist in all of THE RADTASTICAL HISTORY OF RADTASTICALEST!!!!!!

“Have you heard of the word…*whispers* radtasticalest?”

“YOU MORON! YOU PRONOUNCE IT *RADTASTICALEST!!!”

RADTASTICALEST by Absurdsimp August 23, 2021

rotastical 

When something is amazingly not cool.

anytime something horribly uncool happens, or someone looks realllly uncool, it's rotastical

rotastical by Seth Nightroad August 27, 2006

Radtastic 

Totally cool, yet better then life.

Related to the words rad and awesome.

"That shirt is radtastic man."

Radtastic by AudreyDoodleBop July 31, 2009

Radtastic! 

Fantastically radical, radically fantastic

Your skateboard is way more radtastic! than my skateboard, duuude.

Radtastic! by Nick Kname November 6, 2014

Radtastic 

An adjective to describe something both radical and fantastic; a portmanteau of the two words

John: hey how'd you do on the quiz

Jake: fuckin radtastic

Radtastic by FabulousTurtle September 12, 2016