Synonyms and Antonyms of placid
1
free from emotional or mental agitation
- an exceptionally placid mother who was rarely upset by her six children
calm, collected, composed, cool, coolheaded, equal, level, limpid, peaceful, possessed, recollected, sedate, self-composed, self-possessed, serene, smooth, together, tranquil, undisturbed, unperturbed, unruffled, unshaken, untroubled, unworried
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 (also tranquillized)
anxious, bothered, distressed, uneasy, unquiet, unsettled, worried
jittery, jumpy, nervous, restless, skittish, tense
high-strung, unstable, uptight
2
free from storms or physical disturbance
calm, halcyon, hushed, lown [dialect], peaceful, quiet, serene, still, stilly, tranquil, untroubled
balmy, clement, equable, gentle, mild, moderate, temperate
clear, cloudless, fair, rainless, sunny, sunshiny, windless
3
free from disturbing noise or uproar
- a vacation in the placid lake community
noiseless, silent, soundless
mute, speechless, wordless
dead, motionless, quiescent
muffled, muted, quieted
dull, gentle, low
