Antonyms of adj hygroscopic

1 sense of hygroscopic

Sense 1
hygroscopic -- (absorbing moisture (as from the air))

INDIRECT (VIA absorbent) -> nonabsorbent, nonabsorptive -- (not capable of absorbing or soaking up (liquids))

Similarity of adj hygroscopic

1 sense of hygroscopic

Sense 1
hygroscopic -- (absorbing moisture (as from the air))
       => absorbent (vs. nonabsorbent), absorptive -- (having power or capacity or tendency to absorb or soak up something (liquids or energy etc.); "as absorbent as a sponge")