Select the most appropriate SYNONYM of the given word.

DISGRUNTLED

Discontent 

The most appropriate synonym of the word "disgruntled" is discontent.

• Disgruntled means "feeling or showing dissatisfaction or annoyance."
• Discontent means "a feeling of dissatisfaction or restlessness."

The other words do not have the same meaning as "disgruntled."

• Stealthy means "acting in a cautious or surreptitious way, so as to avoid notice."
• Quivering means "shaking or trembling slightly."
• Surreptitious means "done or acting in a sneaky or furtive way, especially in order to avoid detection."