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62.
Rad
an outdated slang term meaning "good". possibly still current on the west coast, land of scariness.
if you've used the term rad since since 1990 in any way but to make fun of it, you are a sad individual
by minghi May 21, 2003
 
1.
Rad
An abbreviation of 'radical'--a term made popular by the Teenage Mutant Ninja Turtles. Still primarily used by people on the West Coast who find words like 'cool', 'awesome', and 'tight' to be tired and overused; 'rad' is generally considered to be a much higher praise than the aforementioned superlatives. Also used as a general expression of awe.
"Those are some rad shoes."
"Oh, RAD."
by Prettykitty July 26, 2003
 
2.
rad
really cool, but in a more subtle way. as opposed to extreme or awesome. one of the highest compliments you can give someone. being rad is like being cool without having to work for it. it's like a natural coolness.
she seems quiet at frist, but she's actually pretty rad when you get to know her.

these pro skaters have it all wrong, it should be less extreme and more rad, like it was back in the day.
by electric jim August 15, 2004
 
3.
Rad
the word used to describe something when u must describe it as positively as possible. Rad is the strongest alternative, and stronger than the word, 'cool'
Sex and Pizza are rad
by Captain|2ad November 24, 2002
 
4.
Rad
A young rapper from northern Europe. Born in 1997. Makes his own music videos and beats. Very underground, sometimes uses famous or underground beats. Usually very low budget but still best quality production. On the internet and other media sources he uses his name often with "Hip-Hop" behind it like: "Rad Hip-Hop" or RadHipHop for twitter and so on.
by Batman inc. January 03, 2014
 
5.
Rad
Slang and/or abbreviation for the word "radical."
"Our trip to the strip club was rad!"
by x January 31, 2003
 
6.
rad
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 08, 2009
 
7.
Rad
Shortend form of the word radical, a 100% slang word from the 1980's, used mostly in the past by people from Generation-X (people born in the late 60's early 70's) to describe something that's cool.

Apperantly lots teens today are starting to use it as well, most of 'm probably don't even know that it is a 80's slang word and if they do know, they probably are pretending that it's something of their generation.
That's a rad bike you've got.
by mitrooper September 20, 2009