Synonyms for Sterile (same or very similar meaning)
WordNet sense 1 (free of or using methods to keep free of pathological microorganisms):
aseptic
WordNet sense 2 (not bearing offspring):
barren
WordNet sense 3 (incapable of reproducing):
infertile, unfertile
WordNet sense 4 (deficient in originality or creativity; lacking powers of invention):
unimaginative, uninspired, uninventive
WordNet sense 5 (not creative):
uncreative
From the ODE community, based on WordNet
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