Emily Dickinson Lexicon

IN-SUF-FI'CIEN-CY, n. [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. Hooker.