QUICKEN Antonyms There are 7 antonyms of the word quicken. (opposite meanings)Did you mean?Definition of QUICKENSynonyms of QUICKENAlso try opposite words for..quickensquickenedquickeningBest Opposite Words For QUICKENTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1decelerateverbv2delayverb, nounv, n3hinderverbv4impedeverbv5prolongverbv6protractverbv7slow down Alternatives for DECELERATE Words (1)slowPhrases (2)slow downslow upOpposite words for decelerate Alternatives for DELAY Words (18)detainadjourncalmcheckcunctationdeferholdholdupimpedemoderatepostponepostponementquellstaysuspendwaitforslowpenelopizePhrases (3)hold upput offtime lagOpposite words for delay Alternatives for HINDER Words (24)blockhamperimpedeobstructdelayfrustraterestrainthwarthandicapencumberinhibitlimitslowbackbarhindpreventstopblockadeembarrassposteriorrearstymiestymyOpposite words for hinder Alternatives for IMPEDE Words (22)blockhinderobstructclogconstraincurbdelaydeterencumberhamperinhibitinterruptpreventrestrainslowstopstymiethwarttrammeljamobturateoccludeOpposite words for impede Alternatives for PROLONG Words (3)extendprotractsustainPhrases (2)draw outkeep upOpposite words for prolong Alternatives for PROTRACT Words (2)prolongextendPhrases (1)draw outOpposite words for protract