Difference between Unmatched and Unrivaled

Unmatched

Part of speech: verb

Definition: To separate a matching pair.

Part of speech: adjective

Definition: not matched; odd peerless; unrivalled; beyond comparison

Example sentence: I will say this: Rapping-wise, there has never been anybody to match Tupac's energy when coming on a song, like when rappin'. It's unmatched. You can't duplicate it.

Unrivaled

Part of speech: adjective

Definition: Beyond compare, far surpassing any other, unparalleled, without rival.