slang Exceptionally good, excellent, cool, or exciting. Short for the slang term "radical." That was a pretty rad concert! Wow, rad—a new bicycle! Thanks, Mom and Dad!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
mod. quite excellent. (see also rad.) Oh, Tiff! That’s way rad!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.