Merriam-Webster Online Dictionary
calm (noun)1.
a) a period or condition of freedom from storms, high winds, or rough activity of water
b) complete absence of wind or presence of wind having a speed no greater than one mile (1.6 kilometers) per hour - see beaufort scale table
2.
a state of tranquillity
intransitive verb
transitive verb
to become calm - usually used with down to make calm - often used with down
1.
marked by calm - still a calm sea
2.
free from agitation, excitement, or disturbance
Merriam-Webster Online Thesaurus
calm (adjective)1.
free from storms or physical disturbance
SYNONIMS:
halcyon, hushed, lown, peaceful, placid, quiet, serene, still, stilly, tranquil, untroubledRELATED WORDS:
balmy, clement, equable, gentle, mild, moderate, temperate; clear, cloudless, fair, rainless, sunny, sunshiny, windlessNEAR ANTONYMS:
blizzardy ( blizzardly), blustery, squally, windy; extreme, foul, intemperate, nasty, severe2.
free from emotional or mental agitation
SYNONIMS:
collected, composed, cool, coolheaded, equal, level, limpid, peaceful, placid, possessed, recollected, sedate, self-composed, self-possessed, serene, smooth, together, tranquil, undisturbed, unperturbed, unruffled, unshaken, untroubled, unworriedRELATED WORDS:
even, even-keeled, steady, well-adjusted, well-balanced; imperturbable, nerveless, unflappable, unshakable; centered, disciplined, equable, self-contained, self-controlled; affable, breezy, devil-may-care, easygoing, happy-go-lucky, laid-back, loosey-goosey, mellow; carefree, nonchalant, unconcerned; assured, confident, self-assured; aloof, detached, dispassionate, indifferent; bovine, impassive, phlegmatic, sober, stolid; relaxed, relieved, tranquilized ( tranquillized)NEAR ANTONYMS:
anxious, bothered, distressed, uneasy, unquiet, unsettled, worried; jittery, jumpy, nervous, restless, skittish, tense; high-strung, unstable, uptight3.
free from disturbing noise or uproar
SYNONIMS:
arcadian, calm, hushed, peaceful, placid, restful, serene, still, stilly, tranquilRELATED WORDS:
noiseless, silent, soundless; mute, speechless, wordless; dead, motionless, quiescent; muffled, muted, quieted; dull, gentle, low, soft; ultraquietNEAR ANTONYMS:
crazy, tempestuous, wild; blaring, blasting, booming, earsplitting, piercing, roaring, thundering, thunderous1.
a state of freedom from storm or disturbance
SYNONIMS:
calmness, hush, peace, peacefulness, placidity, quiet, quietness, quietude, repose, restfulness, sereneness, serenity, still, stillness, tranquillity ( tranquility)RELATED WORDS:
lull, pause, respite; silence; mildness, soothingness; comity, concord, harmony; casualness, easygoingness, informality, laid-backness, relaxednessNEAR ANTONYMS:
clamor, din, noise, racket2.
freedom from disquieting or oppressive thoughts or emotions
SYNONIMS:
calm, calmness, heartsease, peacefulness, placidity, sereneness, serenity, tranquillity ( tranquility)RELATED WORDS:
content, contentment, ease; comfort, consolation, relief, solace; quiet, quietude, reposeNEAR ANTONYMS:
care, concern, perturbation; strain, stress, tenseness, tension; consternation, desperateness, desperation, discomfort, discomposure, dismay, distraction, distress, disturbance, edginess, jitters, jumpiness, nervousness; fear, fearfulness, torment, upset; doubt, dread, foreboding, incertitude, misgiving, presentiment, suspense, uncertainty1.
to free from distress or disturbance
SYNONIMS:
becalm, compose, lull, lullaby, quiet, quieten, salve, settle, soothe, still, tranquilize ( tranquillize)RELATED WORDS:
appease, conciliate, hush, mollify, pacify, placate; allay, alleviate, assuage, ease, lay, mitigate, quell, relax, relieve, solace; narcotize, sedate, stupefyNEAR ANTONYMS:
aggravate, heighten, intensify; arouse, excite, foment, incite, rouse, stir (up), work up2.
to gain emotional or mental control of
SYNONIMS:
calm, compose, contain, control, re-collect, settleRELATED WORDS:
hold back, restrain; rally, recover; lull, quiet, soothe, still, tranquilize ( tranquillize)to become still and orderly
SYNONIMS:
calm (down), chill out, cool, hush, pipe down, settle (down)RELATED WORDS:
dry up; relax, tranquilize ( tranquillize), unwind, zone outNEAR ANTONYMS:
clown (around), fool around, horse around, monkey (around), show off, skylark