feeble

Definitions:

Weak; infirm; weakened by disease or wanting vigour; faint; dull.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Weak; wanting in physical strength or mental power; infirm.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
That part of a sword or fencing- foil extending from about the middle of the blade to the point; so called because it is the weakest portion of the weapon for resisting pressure, deflecting a blow, etc. Called also FAIBLE and FOIBLE.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)
Weak; infirm; faint; imperfect; slender.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
Weak; wanting in strength of body; showing weakness or incapacity; faint; dull.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
Feebleness.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)
Feebly.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adverb) (adv.) (adverb)
Weak in mind or body; faint.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)

Usage examples:

He had been trying, after a feeble fashion, to keep his promise to Clara, and was really suffering from lack of excitement.
- The Marrow of Tradition by Charles W. Chesnutt
" You are right, Monsieur," he said, breaking the silence abruptly, and speaking in a clear, though feeble voice, " Madelon must go her aunt.
- My Little Lady by Eleanor Frances Poynter
He bent down and kissed her and she kissed him back, throwing her thin and feeble arm about his neck, after which the nurse came and hurried him away weeping.
- Love Eternal by H. Rider Haggard