1. a dishonest or unprincipled person
2. a mischievous person, especially a child
Usage: often affectionate

1. acting independently and often unpredictably
2. defective or faulty
Usage: technical

Examples

• The rogue trader cost the bank millions of dollars.
• That little rogue ate all the cookies when no one was looking.
• The rogue elephant wandered away from the herd.
• A rogue wave damaged several boats in the harbor.
• The detective was known as a rogue cop who didn’t follow protocol.
• She had a rogue strand of hair that wouldn’t stay in place.
• The rogue software caused the computer to crash repeatedly.