Antonyms:

absorbent, absorptive

having power or capacity or tendency to absorb or soak up something (liquids or energy etc.)

absorbefacient, sorbefacient

inducing or promoting absorption

assimilating, assimilative, assimilatory

capable of taking (gas, light, or liquids) into a solution

hygroscopic

absorbing moisture (as from the air)

receptive

able to absorb liquid (not repellent)

shock-absorbent

having the capacity to absorb the energy of an impact

spongelike, spongy

like a sponge in being able to absorb liquids and yield it back when compressed

thirsty

able to take in large quantities of moisture

show more antonyms...