Opposite for nonadhesive:

"adhesive, adherent, agglutinate, agglutinative, bondable, coherent, tenacious, cohesive, gluey, glutinous, gummy, mucilaginous, pasty, sticky, viscid, viscous, gooey, icky, gum-like, gummed, gummy, pitchy, resinous, resiny, tarry, self-sealing, stic