(adj.) a word that describes something that is so far beyond amazing that this is the only word to describe it.
Teacher: Does anyone know what the synonym for-
Jack: RADTASTICAL!
Teacher: No, Jack. And you really should really start raising your hand-
Jack: -BUT, I DO!
Teacher: Yes, Jack. AS you're blurting out what you have to say. So does anyone know the synonym for- oh- I guess you're right, Jack.
Jack: RADTASTICAL *:D*
Jack: RADTASTICAL!
Teacher: No, Jack. And you really should really start raising your hand-
Jack: -BUT, I DO!
Teacher: Yes, Jack. AS you're blurting out what you have to say. So does anyone know the synonym for- oh- I guess you're right, Jack.
Jack: RADTASTICAL *:D*
by bleyw&trippy January 8, 2010
Get the radtasticalmug. Rad and fantastic combined making a force to be rekoned with. If you are radtastic you are the best.
by sctso April 28, 2003
Get the radtasticmug. (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.
by Bradley Darren Davidson November 14, 2006
Get the Radtasticmug. by Devin Starr May 16, 2009
Get the Radtasticmug. Somebody who is all out awesome and portrays a certain image that is accepted through certain groups, cults; etc.
"I love you! You're so radtastical!."
by Samantha Sadler April 14, 2006
Get the Radtasticalmug. by asdfcodyjkl; August 14, 2008
Get the Radtasticmug.