Envy, by contrast, is thought to be inherently bad—a “feeling of mortification and ill-will occasioned by the contemplation of superior advantages possessed by another,” according to the Oxford English Dictionary.
Envy is a mostly negative feeling of desire for something that someone else has and you do not. Envy is not a good feeling—it can be described as a mix of admiration and discontent. But it's not necessarily malicious. Envy is very similar in meaning to jealousy.