D defs.my
Entry 2 senses Webster, 1913

Insufficiency

/ĭnˌ-səf-ĭsh'-ən-sēˌ/ · In·suf·fi·cien·cy · IPA /ɪnsəˈfɪʃənsi/
01 n. The quality or state of being insufficient; lack of sufficiency; deficiency; inadequateness; as, the insufficiency of provisions, of an exc…
  1. 1.
    The quality or state of being insufficient; lack of sufficiency; deficiency; inadequateness; as, the insufficiency of provisions, of an excuse, etc.
    “The insufficiency of the light of nature is, by the light of Scripture, . . . fully supplied.” Hooker.
  2. 2.
    Lack of power or skill; inability; incapacity; incompetency; as, the insufficiency of a man for an office.