dustiest

Adjective

dusty (comparative dustier, superlative dustiest)

1. Covered with dust.
   • a dusty carpet

   Synonyms:

   dust-ridden

2. Powdery and resembling dust.
3. Grey or greyish.
   • a dusty peach color
4. (figuratively) Old; outdated; stuffily traditional.
   • The very smart practitioners of my acquaintance do not rest their right hand on old dusty knowledge, but bend and move along a ground of being in which they are perpetually on the lookout for what is trusty and true, new and old.2018, Mark A. Kunkel, Allegories for Psychotherapy, Teaching, and Supervision, page 208
5. (slang, African-American Vernacular) Ugly, disgusting (a general term of abuse).
6. (UK, slang) Ugly, unwell, inadequate, bad.
   • ...the toilet-glass on the table...had probably reflected few such faces as that of the lady calling herself Mrs. Lloyd, who looked attentively into it when she found herself alone and decided that she was not so very dusty, considering1868, Edmund Yates, The Rock Ahead: A Novel, page 21

See all 19 meanings of dusty