Definition of dusty adjective from the Oxford Advanced Learner's Dictionary

     

    dusty

     adjective
    adjective
    BrE BrE//ˈdʌsti//
     
    ; NAmE NAmE//ˈdʌsti//
     
    (dustier, dustiest)
     
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  1. 1full of dust; covered with dust a dusty road piles of dusty books Synonymsdirtydusty filthy muddy soiled grubby stainedThese words all describe somebody/​something that is not clean.dirty not clean; covered with dust, soil, mud, oil, etc:If your hands are dirty, go and wash them.dusty full of dust; covered with dust:There were shelves full of dusty books.filthy very dirty and unpleasant:It’s absolutely filthy in here.muddy full of or covered in mud:Don’t you come in here with those muddy boots on!soiled (rather formal) dirty, especially with waste from the body:soiled nappies/​diapersgrubby (rather informal) rather dirty, usually because it has not been washed:He hoped she wouldn’t notice his grubby shirt cuffs.stained (often in compounds) covered with stains; marked with a stain (= a dirty mark that is difficult to remove):a pair of paint-stained jeansPatterns dirty/​dusty/​filthy/​muddy/​soiled/​grubby/​stained clothes dirty/​dusty/​filthy/​grubby hands a dirty/​dusty/​filthy room to get dirty/​dusty/​filthy/​muddy/​stained
  2. 2(of a colour) not bright; dull dusty pink
  3. Extra examples My ornaments seem to get dusty very quickly. The books looked dusty and unused. some dusty old books in a cupboard The room was dark and dusty. There were shelves full of faded dusty books. They plodded along the dusty road. We tramped for miles down the dusty road.
See the Oxford Advanced American Dictionary entry: dusty