UNAPT'NESS, noun 1. Unfitness; unsuitableness. 2. Dullness; want of quick apprehension. 3. Unreadiness; disqualification; want of propension. The mind, by excess of exertion, gets an unaptness to vigorous attempts.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI