Tranquility definition: the quality or state of being tranquil; calmness; peacefulness; quiet; serenity.. See examples of TRANQUILITY used in a sentence. tranquility meanings, definitions, synonyms, and antonym. Explore more Positive Words at Dictionary by BUHAVE. Definition of tranquillity noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Tranquillity is a sense of peace and quiet . It is the feeling you have while sitting under a starry sky, listening to the crickets. The aura of tranquility comes from the calm in the world, which makes you feel you are without a care in the world.
