EXACT'NESS, noun Accuracy; nicety; precision; as, to make experiments with exactness 1. Regularity; careful conformity to law or rules of propriety; as exactness of deportment. 2. Careful observance of method and conformity to truth; as exactness in accounts or business.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI