rad

From Wiktionary

Pronunciation[change]

Abbreviation[change]

Abbreviation
rad

  1. (geometry) Short for "radian".
  2. (slang) Short for "radical".
  3. (motor trade slang) Short for "radiator".

Adjective[change]

Positive
rad

Comparative
radder

Superlative
raddest

  1. (slang) Cool, short for "radical".
    That outfit is so rad!