adj. 25B6; adjective
the floor was dusty : DIRTY, grimy, grubby, unclean, soiled, mucky, sooty; undusted; informal grungy, cruddy; Brit. informal grotty.
dusty sandstone : POWDERY, crumbly, chalky, friable; granular, gritty, sandy.
a dusty pink : MUTED, dull, faded, pale, pastel, subtle; greyish, darkish, dirty.
(Brit.) a dusty answer : CURT, abrupt, terse, brusque, blunt, short, sharp, tart, gruff, offhand; informal snippy, snappy.
clean, bright.