fee·ble (f??b?l)adj. fee·bler, fee·blest 1. a. Lacking bodily strength; weak: too feeble to climb the hill.b. Having little intensity or strength; faint: feeble light; a feeble voice.2. Having little capacity to withstand pressure or strain: the castle’s feeble defenses.3. a. Lacking vigor or effectiveness; inadequate: a feeble attempt to apologize.b. Showing little activity: a feeble housing market. See Synonyms at weak.[Middle English feble, from Old French, from Latin fl?bilis, lamentable, from fl?re, to weep.]fee?ble·ness n.fee?bly adv.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.feeble (?fi?b?l) adj1. lacking in physical or mental strength; frail; weak2. inadequate; unconvincing: feeble excuses. 3. easily influenced or indecisive[C12: from Old French feble, fleible, from Latin fl?bilis to be lamented, from fl?re to weep] ?feebleness n ?feebly advCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014fee?ble (?fi b?l) adj. -bler, -blest. 1. physically weak, as from age or sickness; frail. 2. weak intellectually or morally: a feeble mind. 3. lacking in volume, brightness, distinctness, etc.: feeble light. 4. lacking in substance or effectiveness: feeble arguments. [1125?75; Middle English feble