Merriam-Webster Online Dictionary
sad (adjective)1.
a) affected with or expressive of grief or unhappiness - downcast
b) (1) causing or associated with grief or unhappiness - depressing sad news
(2) - regrettable deplorable a sad relaxation of morals C. W. Cunnington
c) of little worth
2.
of a dull somber color
seasonal affective disorder
Merriam-Webster Online Thesaurus
sad (adjective)1.
feeling unhappiness
SYNONIMS:
bad, blue, brokenhearted, cast down, crestfallen, dejected, depressed, despondent, disconsolate, doleful, down, downcast, downhearted, down in the mouth, droopy, forlorn, gloomy, glum, hangdog, heartbroken, heartsick, heartsore, heavyhearted, inconsolable, joyless, low, low-spirited, melancholic, melancholy, miserable, mournful, saddened, sorrowful, sorry, unhappy, woebegone, woeful, wretchedRELATED WORDS:
aggrieved, distressed, troubled, uneasy, unquiet, upset, worried; despairing, hopeless, sunk; disappointed, discouraged, disheartened, dispirited; suicidal; dolorous, lachrymose, lugubrious, plaintive, tearful; regretful, rueful; agonized, anguished, grieving, wailing, weeping; black, bleak, cheerless, comfortless, dark, darkening, depressing, desolate, dismal, drear, dreary, elegiac ( elegiacal), funereal, gray ( grey), morbid, morose, murky, saturnine, somber ( sombre), sullenNEAR ANTONYMS:
ecstatic, elated, enraptured, entranced, euphoric, exhilarated, exuberant, exultant, overjoyed, rapturous, rhapsodic ( rhapsodical); blithe, blithesome, jocose, jocular, jocund, jolly, jovial, lightsome, merry, mirthful; excited, thrilled; hopeful, optimistic, rosy, sanguine; encouraged, heartened; animated, bouncing, energetic, frisky, jaunty, lively, peppy, perky, spirited, sprightful, sprightly, springy, vital, vivacious, zippy; content, gratified, pleased, satisfied; beaming, grinning, laughing, smiling; boon, carefree, careless, cavalier, devil-may-care, easygoing, happy-go-lucky, insouciant, lighthearted, unconcerned2.
causing unhappiness
SYNONIMS:
depressing, dismal, drear, dreary, heartbreaking, heartrending, melancholy, mournful, pathetic, saddening, sorry, tearful, tearyRELATED WORDS:
deplorable, distressful, grievous, lamentable, unfortunate, woeful; discomforting, discomposing, disquieting, distressing, disturbing, perturbing; affecting, moving, poignant, touching; discouraging, disheartening, dispiritingNEAR ANTONYMS:
heartening, heartwarming, inspiring, stimulating, stirring, uplifting; agreeable, delightful, enjoyable, pleasant, pleasing, pleasurable, satisfying, welcome; exhilarating, thrilling3.
deserving pitying scorn (as for inadequacy)
SYNONIMS:
contemptible, despicable, miserable, pathetic, pitiable, sad, sorry, wretchedRELATED WORDS:
deplorable, discreditable, disgraceful, disreputable, ignominious, infamous, misbegotten, notorious, shameful; abhorrent, abominable, beastly, detestable, hateful, lousy, odious, stinking; bad, inferior, lame, poor; disgusting, dishonorable, shameful; meritless, unworthy, worthless; scandalous, shocking, sordid, unsavoryNEAR ANTONYMS:
admirable, commendable, creditable, laudable, meritorious, praiseworthy, redoubtable; notable, noteworthy, noticeable, outstanding, reputable, worthy; excellent; flawless, perfect; honorable, noble; honest, straight