1. Not agitated; without losing self-possession
   "spoke in a calm voice"; "remained calm throughout the uproar";
   - unagitated, serene, tranquil
    
2. (of weather) free from storm or wind
   "calm seas"
    
3. Free of noise and disturbance, with little activity
   "a calm scene by the river";
   - tranquil, peaceful, serene

1. Steadiness of mind under stress
   "She maintained her calm throughout the emergency";
   - composure, calmness, equanimity, collectedness, unflappability
    
2. Wind moving at less than 1 knot; 0 on the Beaufort scale
   "The lake's surface was like glass in the calm air";
   - calm air
    
3. A peaceful and restful state; absence of noise and disturbance
   "There was calm, not the chaos and hysteria that was predicted"

1. Stop being excited, agitated or moving
   "calm yourself";
   - steady, becalm
    
2. Become quiet or calm, especially after a state of agitation
   "After the fight both men need to calm down.";
   - calm down, cool off, chill out [informal], simmer down [informal], settle down, cool it [informal], wind down, take a chill pill [informal], take it easy [informal]
    
3. Make calm or still
   "calm the dragons of worry and fear";
   - calm down, quiet, tranquilize [N. Amer], tranquillize, tranquillise [Brit], quieten [Brit], lull, still
    
4. Cause to be calm or quiet as by administering a sedative to
   "The patient must be calmed before the operation";
   - sedate, tranquilize [N. Amer], tranquillize, tranquillise [Brit]

Derived forms: calmer, calmed, calmest, calming, calms

See also: composed, halcyon, peaceable, peaceful, placid, quiet, settled, smooth, still, tranquil, unruffled, windless

Type of: affect, air current, change state, comfort, console, current of air, disposition, solace, soothe, stabilise [Brit], stabilize, temperament, turn, wind

Antonym: agitate, perk up, stormy

Part of: Beaufort scale, wind scale

Encyclopedia: Calm, Missouri