adynamic /(ăd`ĭ*năm"ĭk)/

ad·y·nam·ic

adynamic

a.
  1. Pertaining to, or characterized by adynamia; weak. (Med.)
  2. Characterized by the absence of power or force. (Physics)

Phrases & Compounds
Adynamic fevers
malignant or putrid fevers attended with great muscular debility.