1. [ adjective ] characterized by absence of emotional agitation
Synonyms: calm serene

"calm acceptance of the inevitable" "remained serene in the midst of turbulence" "a serene expression on her face" "she became more tranquil" "tranquil life in the country"

Related terms: peaceful
2. [ adjective ] free from disturbance
Synonyms: still placid quiet unruffled

"a ribbon of sand between the angry sea and the placid bay" "the quiet waters of a lagoon" "a lake of tranquil blue water reflecting a tranquil blue sky" "a smooth channel crossing" "scarcely a ripple on the still water"

Related terms: calm
Similar spelling:   tranquilly