Synonyms: unagitated
Definition: not physically disturbed or set in motion
Similar words: nonturbulent
Definition: (of a liquid) not turbulent
Usage: nonturbulent flow
Similar words: unstirred
Definition: not agitated by stirring
Usage: the ingredients sat in the bowl unstirred while she buttered the pan
Synonyms: calm, unagitated, tranquil, serene
Definition: not agitated; without losing self-possession
Usage: spoke in a calm voice; remained calm throughout the uproar; he remained serene in the midst of turbulence; a serene expression on her face; she became more tranquil; tranquil life in the country
Similar words: composed
Definition: serenely self-possessed and free from agitation especially in times of stress
Usage: the performer seemed completely composed as she stepped onto the stage; I felt calm and more composed than I had in a long time