Thesaurus

Synonyms for Sad include:

abominable, anguished, atrocious, awful, bad, bereaved, bereft, bitter, bittersweet, brokenhearted, cheerless, corked, corky, crappy, dejected, deplorable, depressing, depressive, discontent, discontented, disobedient, distressed, distressing, doleful, dolorous, dolourous, dreadful, dysphoric, elegiac, evil, fearful, frightful, gloomy, grief-stricken, grieving, grievous, hard, heartbreaking, heartbroken, heartrending, heartsick, heavyhearted, homesick, hopeless, horrid, icky, ill, incompetent, infelicitous, joyless, lachrymose, lamentable, lamenting, lousy, lovesick, lugubrious, mediocre, melancholic, melancholy, mischievous, miserable, mournful, mourning, naughty, negative, no-good, nostalgic, painful, pensive, pitiful, plaintive, poor, pretty, rotten, rubber, sad, saddening, severe, sorrowful, sorrowing, sorry, stinking, stinky, suffering, swingeing, tearful, terrible, tormented, tortured, tough, tragic, tragical, tragicomic, tragicomical, uncheerful, uncool, unfavorable, unfavourable, unhappy, unskilled, unspeakable, unsuitable, wailful, wailing, weeping, wistful, woebegone, woeful, worse, worst, wretched

sad is a ADJ.