dustiest

/D AH1 S T IY0 AH0 S T/
adjective
  1. 1

    Covered with dust.

  2. 2

    Powdery and resembling dust.

  3. 3

    Grey in parts.

  4. 4

    Ugly, disgusting (a general term of abuse)

Synonyms

Source: https://en.wiktionary.org/wiki/dustiest, https://en.wiktionary.org/wiki/dusty