The term 'Far Out, Dude!' is an expression of enthusiasm and approval. It is often used to express admiration for something that is cool or impressive. The crossword solutions for this term are RAD (3 letters) and AWESOME (7 letters). RAD is an acronym for 'Really AWESOME Dude' and AWESOME is an adjective meaning 'extremely impressive or daunting; inspiring great admiration, apprehension, or fear'. Both words are used to express the same sentiment of admiration and approval.