/ Dictionary / Index I infertile: Meaning and Definition of Find definitions for: in•fer•tile Pronunciation: (in-fûr'tl or, esp. Brit., -tīl), [key] — adj. not fertile; unproductive; sterile; barren: infertile soil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: infertile (Thesaurus) inferoanterior infest Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language