n. [ See Adequate. ] The state or quality of being adequate, proportionate, or sufficient; a sufficiency for a particular purpose;
n. [ From Inadequate. ] The quality or state of being inadequate or insufficient; defectiveness; insufficiency; inadequateness. [ 1913 Webster ]
The inadequacy and consequent inefficacy of the alleged causes. Dr. T. Dwight. [ 1913 Webster ]