verb (used with object)
verb (used without object)
SYNONYMS FOR weaken
Related formsweak·en·er, nounre·weak·en, verbun·weak·ened, adjectiveun·weak·en·ing, adjective
Examples from the Web for weaken
Democrats split over moves to weaken Wall Street reforms, and Republicans pouted over lost leverage.
But his voice never seems to crack or weaken, and he's always in motion—jiggling, aerobic walking, jumping, dancing.The Stacks: Pauline Kael's Talking Heads Obsession|Pauline Kael|November 22, 2014|DAILY BEAST
But the attacks could also weaken the most potent opponents to the dictator Bashar al-Assad.Al Qaeda Plotters in Syria ‘Went Dark,’ U.S. Spies Say|Eli Lake|September 24, 2014|DAILY BEAST
Assad has been accused of knowingly leaving room for ISIS to grow, the better to weaken the less radical rebels.Beirut Letter: In Lebanon, Fighting ISIS With Culture and Satire|Kim Ghattas|September 22, 2014|DAILY BEAST
This jives with his previous research that fasting can weaken cancer in mice.
He knew that would only rouse his emotions and weaken his courage.The Lost Prince|Frances Hodgson Burnett
It addresses itself to no slaves to weaken their obligations of obedience.The Papers And Writings Of Abraham Lincoln, Volume Two|Abraham Lincoln
Attacking the brain, they warp the judgment, and weaken the power of restraint.Searchlights on Health: Light on Dark Corners|B.G. Jefferis
But his faith had begun to weaken in many minor points of discipline.Eighty Years And More; Reminiscences 1815-1897|Elizabeth Cady Stanton
She knew that if she relaxed her purposefulness for an instant the love for him would rush over her, weaken her.The Seventh Man|Max Brand