Definition

Excellent, impressive, or awesome; used as a strong term of approval. Often associated with 1980s-90s youth culture and surf/skate communities.

Example Usage

That kickflip was radical, dude!

Origin

From the literal sense of 'going to the root' or 'extreme,' adopted by counterculture and youth movements to mean 'far out' or 'excellent.'

Fun Fact

Popularized by teenage mutant ninja turtles catchphrase 'Cowabunga!' and 80s California surf culture.

Source: Definition backfill (hailey)

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