adj. (sadder, saddest) 1 unhappy; feeling sorrow or regret. 2 causing or suggesting sorrow (a sad story). 3 regrettable. 4 shameful, deplorable (is in a sad state). 5 (of a colour) dull, neutral-tinted. 6 (of dough etc.) heavy, having failed to rise. sad-iron a solid flat-iron. sad sack US colloq. a very inept person. saddish adj. sadly adv. sadness n.
[ OE sd f. Gmc, rel. to L satis ]