Adjective
1. incapable of reproducing;
"an infertile couple"2. free of or using methods to keep free of pathological microorganisms;
"a sterile operating area""aseptic surgical instruments""aseptic surgical techniques"3. deficient in originality or creativity; lacking powers of invention;
"a sterile ideology lacking in originality""unimaginative development of a musical theme""uninspired writing"