1. not physically disturbed or set in motion • Ant: agitated • Similar to: nonturbulent, unstirred 2. not agitated or disturbed emotionally • Ant: agitated • See Also: composed, cool, quiet, relaxed, steady, unexcited 3. not agitated; without losing self-possession - 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 • Syn: calm, serene, tranquil • Similar to: composed • Derivationally related forms: calm (for: calm), calmness (for: calm)