debility

noun

Physical weakness, especially as a result of illness.

SYNONYMS

astheniadecrepitudedevitalizationenervationenfeeblementexhaustionfatiguefeeblenessfrailtyillnessimpairmentincapacityindispositioninfirmitylack of energylack of vitalitylassitudemalaiseovertirednessprostrationsicklinesssicknesstirednessweaknesswearinessweediness