Difference between Surreptitious and Undercover

Surreptitious

Part of speech: adjective

Definition: stealthy, furtive, well hidden, covert (especially movements)

Undercover

Part of speech: adjective

Definition: Performed or happening in secret.Employed or engaged in spying or secret investigation.

Part of speech: noun

Definition: A person who works undercover.

Example sentence: I love 'Donnie Brasco' and 'Days of Thunder,' so after I did 'The Skulls,' I was like, 'I want to be either an undercover cop, or I want to race cars!' Universal came to me with a newspaper article about street racing in L.A., and I was like, 'Are you kidding me? I grew up doing that right off Peoria in Sun Valley.' They asked if I wanted to do it.