How would you describe someone who is "surly"?

The term "surly" is used to describe someone who displays rudeness or a bad temper, often exhibiting a hostile demeanor. This characterization suggests that the individual may be grumpy, unfriendly, or unwilling to engage positively with others. A surly person often responds with irritability or annoyance, making social interactions uncomfortable. In contrast, the other options—friendly and inviting, joyful and enthusiastic, polite and respectful—represent positive qualities that are the opposite of the characteristics associated with being surly. Thus, the definition of "surly" aligns perfectly with the idea of rudeness or a bad tempered nature, confirming that the choice regarding rudeness or bad temperament is indeed correct.