Part of speech:
The definition of tranquil is someone or something that is calm and peaceful.
The definition of placid is calm or quiet.
(Of water) with little waves on the surface.
Serenely self-possessed; calm:
free from emotional agitation or nervous tension; ; - Anthony Trollope
Not agitated emotionally; calm:
Find another word for unperturbed. In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for unperturbed, like: undisturbed, tranquil, placid, calm, unflustered, composed, unflurried, unruffled, unfazed, unfaze and unmoved.