The Collaborative International Dictionary
Nonability
Nonability \Non`a*bil"i*ty\, n.
Want of ability.
(Law) An exception taken against a plaintiff in a cause, when he is unable legally to commence a suit.
Wiktionary
nonability
n. 1 Want of ability. 2 (context legal English) An exception taken against a plaintiff in a cause, when he is unable legally to commence a suit.