WEAKEN Antonyms There are 13 antonyms of the word weaken. (opposite meanings)Did you mean?Definition of WEAKENSynonyms of WEAKENAlso try opposite words for..weakensweakenedweakenerweakeningBest Opposite Words For WEAKENTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1strengthenverbv2bolsterverbv3empowerverbv4enhanceverbv5firmnoun, adjectiven, adj6fortifyverbv7intensifyverbv8invigorateverbv9reinforceverbv10restoreverbv11reviveverbv12solidifyverbv13toughenverbv Alternatives for STRENGTHEN Words (9)fortifybolsterempowerenhanceintensifyinvigoratereinforcesolidifytonePhrases (2)beef uptone upOpposite words for strengthen Alternatives for BOLSTER Words (2)pillowpadPhrases (2)bolster uplong pillowOpposite words for bolster Alternatives for EMPOWER Words (22)allowauthorizepermitapproveemboldenenableencourageequipfacilitatefortifygrantsanctionstrengthensupportauthoriseendowenduegiftindueinspireinvestletOpposite words for empower Alternatives for ENHANCE Words (12)heightenamplifyaugmentboostelevateimproveincreaseintensifymagnifystrengthenupliftraiseOpposite words for enhance Alternatives for FIRM Words (24)steadysolidstrongunshakableunwaveringresoluterobuststablestaunchunyieldingfasttautenfirmlyhouseimmobileloyalsteadfaststeadfastlystifftrueheartedunbendableunfalteringunfluctuatingunwaveringlyPhrases (1)business firmOpposite words for firm Alternatives for FORTIFY Words (7)strengthenarmfortgirdlacesecurespikePhrases (2)beef upbuild upOpposite words for fortify Alternatives for INTENSIFY Words (17)deepenescalateheightenaccentuateaggrandizeamplifyaugmentbolsterboostenhanceexacerbateincreasemagnifyreinforcestimulatestrengthencompoundOpposite words for intensify Alternatives for INVIGORATE Words (18)animateenliveninspirelivenquickenbraceenergizeexhilaratefortifygalvanizerefreshrejuvenaterevivestimulatestrengthenvitalizeexaltreinvigoratePhrases (1)liven upOpposite words for invigorate