tranquil

adjective

tran·​quil ˈtraŋ-kwəl 

ˈtran-

1

a

: free from agitation of mind or spirit

a tranquil self-assurance

b

: free from disturbance or turmoil

a tranquil scene

2

: unvarying in aspect : steady, stable

tranquilly

ˈtraŋ-kwə-lē 

ˈtran-

adverb

tranquilness noun

Synonyms of tranquil

• quiet
• peaceful
• serene
• placid
• restful

Choose the Right Synonym for tranquil

calm, tranquil, serene, placid, peaceful mean quiet and free from disturbance.

calm often implies a contrast with a foregoing or nearby state of agitation or violence.

the protests ended, and the streets were calm again

tranquil suggests a very deep quietude or composure.

the tranquil beauty of a formal garden

serene stresses an unclouded and lofty tranquility.

watched the sunset of a serene summer's evening

placid suggests an undisturbed appearance and often implies a degree of complacency.

remained placid despite the criticism

peaceful implies a state of repose in contrast with or following strife or turmoil.

grown peaceful in old age

Examples of tranquil in a Sentence

the house was once again tranquil after the kids moved outside to play

though she should have been upset, she felt oddly tranquil upon learning that she would not be receiving the scholarship

Recent Examples on the Web

Located right across the water from Miami, Key Biscayne is filled with tranquil experiences in nature, delicious dining options with incredible views of the water, and even a little bit of history to explore. — Lisa Cericola, Southern Living, 13 June 2026

The tranquil beauty of Virginia’s river life unfolds like a folk melody at this waterfront inn located on a private peninsula. — Condé Nast, Condé Nast Traveler, 13 June 2026

In Lore's Sublimity Eau de Parfum, warm musk, sunlit florals, creamy coconut, and golden amber combine to evoke long, tranquil afternoons spent outdoors. — Jennifer Hussein, Allure, 9 June 2026

For some tranquil time outdoors, visit the Monte Rio Redwoods Regional Park and Open Space Preserve. — Sharael Kolberg, Travel + Leisure, 25 May 2026

Word History

Etymology

Middle English tranquill, from Latin tranquillus

First Known Use

15th century, in the meaning defined at sense 1a

Kids Definition

tranquil

adjective

tran·​quil ˈtraŋ-kwəl 

ˈtran-

: free from disturbance or turmoil : quiet

tranquilly

-kwə-lē 

adverb