serene serene /sɝˈiːn/

adjective

1. Completely clear and fine  ( serene )
   completely clear and fine
    Serene skies and a bright blue sea
   serene skies and a bright blue sea
   
2. Not agitated; without losing self-possession  ( serene , tranquil , unagitated , calm )
   not agitated; without losing self-possession
    Spoke in a calm voice
   spoke in a calm voice
    Remained calm throughout the uproar
   remained calm throughout the uproar
    He remained serene in the midst of turbulence
   he remained serene in the midst of turbulence
    A serene expression on her face
   a serene expression on her face
    She became more tranquil
   she became more tranquil
    Tranquil life in the country
   tranquil life in the country