sterile

adjective

1. incapable of reproducing

Similar word(s): barren, sterilised, sterilized, unfertilised, unfertilized, unimpregnated, unfruitful, impotent, unproductive, infertile, unfertile

2. free of or using methods to keep free of pathological microorganisms

- a sterile operating area

Similar word(s): antiseptic, aseptic

3. deficient in originality or creativity; lacking powers of invention

- a sterile ideology lacking in originality

Similar word(s): uncreative, unimaginative, uninspired, uninventive