Used to describe all things rad and awesome.

• The word "Radness" derived from the word "rad", which in turn derived from the word "radical".

• This is a 21st generation word, and no mere mortal may speak of such a word in the company of persons who fail to comply with being Rad.

It also happens to be the raddest website on the web: Radness.co.za
"Hey Johnny, you should try some of this pot I jacked from my granny, this shit is pure radness!"

"Man, that site Radness.co.za has some rad shit!"
by Radness.co.za September 28, 2011
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Something that is really "cool", abreviation for the word radical.
Dang your outfits very rad today.
by 92rediculous January 21, 2017
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awesome; cool usually surfer slang
surfer guy just nailed a wave

"dude that wave was so rad!"
by big booty. May 30, 2006
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a unit of absorbed dose of ionizing radiation, corresponding to the absorption of 0.01 joule per kilogram of the absorbing material.
That hippo just absorbed exactly 1.3 rads of radiation.
by Nerdinitup June 9, 2009
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the act of an object and/or person becoming increasingly rad through self or externally influenced means.
"I'm radding vicariously through you."
by Nate Metheny August 19, 2005
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Quality of being rad. See radliness.
Shawna's radness is insurpassable, she's cooler than Coolio, deafer than Mos Def, and shaggier than Shaq.
by idunnit May 5, 2005
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something you'd say when something is really really really really rad and epic
"Hey, look at my new video!"
"bro that's rad"
by roboticroby September 23, 2017
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