'Feebleness' definitions:

Definition of 'feebleness'

From: WordNet
noun
The state of being weak in health or body (especially from old age) [syn: infirmity, frailty, debility, feebleness, frailness, valetudinarianism]
noun
The quality of lacking intensity or substance; "a shrill yet sweet tenuity of voice"- Nathaniel Hawthorne [syn: feebleness, tenuity]

Definition of 'Feebleness'

From: GCIDE
  • Feebleness \Fee"ble*ness\, n. The quality or condition of being feeble; debility; infirmity. [1913 Webster]
  • That shakes for age and feebleness. --Shak. [1913 Webster]