The Collaborative International Dictionary of English v.0.48:
nonabsorbent \nonabsorbent\ nonabsorptive \nonabsorptive\adj. not capable of absorbing or soaking up (liquids). Opposite of absorbent. [Narrower terms: repellent, resistant ] [WordNet 1.5]WordNet (r) 3.0 (2006):
nonabsorptive adj 1: not capable of absorbing or soaking up (liquids) [syn: {nonabsorbent, nonabsorptive] [ant: absorbent, absorptive]