FOOL'ISHNESS, noun 1. Folly; want of understanding. 2. Foolish practice; want of wisdom or good judgment. 3. In a scriptural sense, absurdity; folly. The preaching of the cross is to them that perish foolishness 1 Corinthians 1:18.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI