Definition of "bad actor" in English

Noun

1. An individual or entity with a prior criminal conviction, or who has been sanctioned by the court or regulator.

2. A person with malicious intent.

3. An ill-intentioned, mean, badly behaved or ill-tempered person. .mw-parser-output .defdate{font-size:smaller}

4. Used other than figuratively or idiomatically: see bad,‎ actor.