Silence: This is the most direct opposite of din.
Quiet: This refers to a lack of noise or disturbance.
Peace and tranquility: These words suggest a state of calm and serenity, the opposite of the chaos of a din.
Stillness: This refers to a complete absence of sound or movement.
Hush: This implies a sudden or complete cessation of noise.
Calm: This suggests a lack of agitation or excitement, the opposite of the commotion of a din.
Serene: This refers to a state of peace and calmness, free from the disturbance of a din.
Solitude: This describes a state of being alone and free from distractions, the opposite of the clamor of a din.
The best antonym will depend on the specific context in which you are using the word "din."