tranquil

When a place or your state of mind is peaceful, quiet and serene, it is tranquil.

Like a pond with no ripples, tranquil means calm and placid. A pleasant state of mind, with nothing to agitate or cause anxiety, can also be considered tranquil. As you struggle through your yoga poses, the teacher might annoyingly exclaim how tranquil you should be feeling, and when you and your siblings bicker over every little thing, your parents are wishing the house were more tranquil.

Definitions of tranquil
1

adj (of a body of water) free from disturbance by heavy waves

“a lake of tranquil blue water reflecting a tranquil blue sky”
Synonyms:
placid, quiet, smooth, still, unruffled
calm
(of weather) free from storm or wind

adj not agitated; without losing self-possession

“she became more tranquil
tranquil life in the country”
Synonyms:
calm, serene, unagitated
composed
serenely self-possessed and free from agitation especially in times of stress

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