INSUFFI'CIENCY, noun [in and sufficiency.] 1. Inadequateness; want of sufficiency; deficiency; as an insufficiency of provisions to supply the garrison. 2. Inadequacy of power or skill; inability; incapacity; incompetency; as the insufficiency of a man for an office. 3. Want of the requisite strength, value or force; defect. The insufficiency of the light of nature is supplied by the light of Scripture.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI