WordReference Random House Unabridged Dictionary of American English © 2026
mil•dew•proof
(mil′do̅o̅ pro̅o̅f′, -dyo̅o̅-),USA pronunciation adj.
v.t.
- able to withstand or repel the effect of mildew.
v.t.
- to enable (fabric, paper, etc.) to withstand or repel the effect of mildew.
- mildew + -proof