Meaning of “tranquil” - Learner’s Dictionary

tranquil

adjective uk us /ˈtræŋkwɪl/

calm and quiet:

a tranquil garden
tranquility ( also tranquillity) uk us /træŋˈkwɪləti/ noun [ U ]

I love the tranquility of the woods.

(Definition of “tranquil” from the Cambridge Learner’s Dictionary © Cambridge University Press)