Tranquil means peacefully calm and quiet. A tranquil lake, a tranquil evening, tranquil surroundings.
It describes places and scenes far more than people, and it suggests undisturbed stillness rather than mere quiet. Tranquillity is the noun, spelled with two l's in Britain and one in America. Note tranquilliser, the drug that produces calm; and the Sea of Tranquillity, where the first moon landing was, which gave the word a moment of enormous prominence in 1969.
1adjectivetranquilPeacefully calm and quiet.
“We found a tranquil spot by the river, far from the noise of the town.”
synonyms: serene, peaceful
tranquil is a quality of calm.
Also accepted in games: serene
Latin tranquillus means calm, and its deeper origin is uncertain — possibly trans plus a root about rest. It was used first of the sea, which is why it still suits water better than anything else.
Proto-Indo-European
*kʷyeh₁-
Latin
tranquillus
Middle French
tranquille
English, today
tranquil
Built from
Middle French tranquille, from Latin tranquillus, from trāns- + the root of quiēs (“rest, quiet, peace”), ultimately from kʷyeh₁- (“to rest”).
Etymology from Wiktionary, CC BY-SA