Superlative form of gnarly: most gnarly.(adjective)
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Use "gnarliest" in a sentence
"Fortunately, the book quickly recovers and becomes a charming and fascinating inquiry into triumph, failure and that gnarliest of head-scratchers: What makes for a successful life?"
"That has to be one of the gnarliest elk I've ever seen."
"Together they brought about some of the gnarliest cupcakes imaginable: pepperoni cupcakes with mint frosting, banana pepper cupcakes with bourbon frosting, cheese steak cupcakes with apple pie frosting, and many other cupcake abominations."