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

The entrance cleverly separates hotel guests from those who are there to dine, so the check-in area is always uncrowded and tranquil. —Condé Nast, Condé Nast Traveler, 30 Dec. 2025

That said, conditions look tranquil for travel toward the Christmas holiday with just the off chance of a rain or snow shower by Tuesday of next week and another possible winter mix on Christmas morning, but nothing like this past Sunday. —Bill Kelly, CBS News, 19 Dec. 2025

The preserve is located within a tranquil neighborhood just south of Torrey Pines Road and Prospect Place, so even the walk to the trailhead — passing by beautiful homes — adds to the quality of the experience. —Maura Fox, San Diego Union-Tribune, 13 Dec. 2025

In Rian Johnson's Wake Up Dead Man, a tranquil church becomes the scene of a shocking (and seemingly impossible) murder. —Allison Degrushe, Entertainment Weekly, 12 Dec. 2025

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