cool head

aplomb dignity equanimity equilibrium fortitude poise self-assurance self-control serenity sobriety

accord assurance balance calm contentment control cool coolness dispassion ease evenness harmony imperturbability moderation nonchalance placidity polish quiet quietude repose sang-froid sedateness self-possession stability tranquility

coolheadedness even temper inexcitability levelheadedness peace of mind presence of mind

agitation

disagreement disproportion disturbance imbalance instability loudness noise turbulence violence wildness

arousal discomposure excitement perturbedness upset