Serenity
A.
B.
C.
D.
Answer & Solution
Solution:
"Serenity"
means a state of being calm, peaceful, and untroubled.
"Calmness"
is the most appropriate synonym as it also refers to a state of peace or
tranquility.
Similar
words: Calmness, Poise, Composure, Peace, Tranquility.
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