Insufficiency

Part of speech: noun (n.)

1. The quality or state of being insufficient; want 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. Want of power or skill; inability; incapacity; incompetency; as, the insufficiency of a man for an office.