SM'ARTNESS, noun 1. The quality of being smart or pungent; poignancy; as the smartness of pain. 2. Quickness; vigor; as the smartness of a blow. 3. Liveliness; briskness; vivacity; wittiness; as the smartness of a reply or of a phrase.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI