Select the most appropriate SYNONYM of the given word.

INSATIABLE

Unquenchable 

The most appropriate synonym of the word "insatiable" is unquenchable.

• Insatiable means "having an insatiable appetite or desire for something."
• Unquenchable means "impossible to satisfy or quench."

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

• Corpulent means "large and fat."
• Clangor means "a loud, harsh, or discordant noise."
• Placid means "calm, peaceful, and serene."