UNFER'TILE, adjective 1. Not fertile; not rich; not having the qualities necessary to the production of good crops. 2. Barren; unfruitful; bare; waste. 3. Not prolific. [This word is not obsolete, but infertile is much used instead of it.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI