Several definitions given here are correct in connecting the term to radical but incorrect in the date of origin. Being old enough, I can attest that it was used at least as far back as the seventies.
by sammmyz December 1, 2014

by your.moms.spaghettios September 10, 2020

When you text your crush and tell them you like them and they say they don't like you with a five paragraph text. All you have in mind is rad.
You: Hey I like you do you want to go out?
Crush:Sorry I don't like you but could we still be friends? I don't want to hurt your feelings .
You:....Rad.......
Crush:Sorry I don't like you but could we still be friends? I don't want to hurt your feelings .
You:....Rad.......
by nimnimjim November 29, 2016

by ted foster March 22, 2008

by Jared December 18, 2003

by VinelSeason July 17, 2021
