adj. (dustier, dustiest) 1 full of, covered with, or resembling dust. 2 dry as dust; uninteresting. 3 (of a colour) dull or muted. dusty answer a curt rejection of a request. dusty miller 1 any of various plants, esp. Artemisia stelleriana, having white dust on the leaves and flowers. 2 an artificial fishing-fly. not so dusty Brit. sl. fairly good. dustily adv. dustiness n.
[ OE dustig (as DUST) ]