Synonyms and Antonyms of strengthen

  1. 1 to increase the ability of (as a muscle) to exert physical force lifting weights every day will eventually strengthen your muscles the army makes new recruits run for miles in order to strengthen them Synonyms of strengthen beef (up), fortify, harden, toughen Words Related to strengthen anneal, temper; firm (up), tone (up); energize, invigorate, vitalize; restrengthen Near Antonyms of strengthen cripple, incapacitate, paralyze; damage, harm, hurt, impair, injure; break down, wear out; sap, undercut, undermine Antonyms of strengthen debilitate, enervate, enfeeble, weaken

  2. 2 to make able to withstand physical hardship, strain, or exposure required weeks of physical therapy to strengthen his arm enough to pitch for the team again Synonyms of strengthen fortify, indurate, inure, season, steel, harden, toughenWords Related to strengthen acclimate, acclimatize, adapt, adjust; anneal, temper; invigorate, vitalize; immunize; bolster, boost, brace, buttress, enforce, forearm, prop (up), reinforce (also reenforce), support; break in, limber (up), train; accustom, condition, habituate, naturalizeNear Antonyms of strengthen emasculate, enervate, enfeeble, exhaust, sap, weaken; cripple, debilitate, hamstring, incapacitate; sensitizeAntonyms of strengthen soften

  3. 3 to make markedly greater in measure or degree encouraged the boarding school students to strengthen their ties with the community by doing public service Synonyms of strengthen accentuate, amp (up), amplify, beef (up), boost, consolidate, deepen, enhance, heighten, magnify, redouble, step up, intensifyWords Related to strengthen broaden, enlarge, expand, extend, lengthen; accelerate, hasten, quicken; emphasize, point (up), sharpen, stress; augment, enforce, reinforce (also reenforce), restrengthen, supplement; maximize; enliven, jazz (up); aggravate, exacerbateNear Antonyms of strengthen decrease, diminish, lessen, let up (on), reduce, subdue, tone (down), weaken; dwindle, recede, subside, taper (off), wane; alleviate, ease, lightenAntonyms of strengthen abate, moderate

  4. 4 to prepare (oneself) mentally or emotionally strengthened herself for the moment she'd have to tell her friend that she had lost the borrowed necklace Synonyms of strengthen brace, forearm, nerve, poise, psych (up), ready, steel, fortifyWords Related to strengthen arm; harden, inure, season, toughen; bolster, boost, buoy (up), buttress, enforce, prop (up), reinforce (also reenforce), support, sustain; cheer (up), comfort, embolden, encourage, hearten, inspire; rally, rouse, stirNear Antonyms of strengthen daunt, demoralize, discourage, dishearten, dispirit, psych (out), shake, unnerve; debilitate, enervate, enfeeble, prostrate, sap, soften, tire, undercut, undermine, weaken

  5. 5 to make more harsh, uncompromising, or severe a bill was introduced to strengthen punishments for hate crimes Synonyms of strengthen harden, stiffen, harshen, toughenNear Antonyms of strengthen lessen, moderate, softenAntonyms of strengthen ameliorate, ease

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