adynamic
Ad`y*nam"ic, a. Etym: [Cf. F. adynamique. See Adynamy.] 1. (Med.) Defn: Pertaining to, or characterized by, debility of the vital powers; weak. 2. (Physics) Defn: Characterized by the absence of power or force. Adynamic fevers, malignant or putrid fevers attended with great muscular debility.