D defs.my
Entry 2 senses Webster, 1913

Weakness

· Weak·ness · IPA /ˈwik.nɪs/
01 n. The quality or state of being weak; want of strength or firmness; lack of vigor; want of resolution or of moral strength; feebleness.
  1. 1.
    The quality or state of being weak; want of strength or firmness; lack of vigor; want of resolution or of moral strength; feebleness.
  2. 2.
    That which is a mark of lack of strength or resolution; a fault; a defect.
    “Many take pleasure in spreading abroad the weakness of an exalted character.” — Spectator.