Synonyms for weakness

noun

1. The state of being weak

   feebleness, senility, anility, delicacy, invalidity, frailty, faintness, prostration, anoxia, anoxemia, decrepitude, debility, effeminacy impotence, enervation, dizziness, femininity, infirmity.

   Antonyms strength*, good health, vitality.

2. An instance or manner of being weak

   fault, failing, deficiency, defect, disturbance, lapse, vice, sore point, gap, flaw, instability, indecision, inconstancy, vulnerability.

   Antonyms virtue*, good, strength.

3. *Inclination

   liking, tendency, bent; see hunger, inclination 1. See syn. study at fault.