Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Describe the antagonist's defining traits.

### Input:
The antagonist is a master thief.

### Response:
The antagonist is a highly skilled, experienced thief. He is crafty, intelligent, and has a strong desire to outwit those who stand in his way. He is also incredibly stealthy, able to sneak unnoticed into even the most secure locations.