SUSTAINER Antonyms There are 9 antonyms of the word sustainer. (opposite meanings)Did you mean?Definition of SUSTAINERAlso try opposite words for..sustainsustainssustainedsustainingsustainableBest Opposite Words For SUSTAINERTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1degradernounn2destroyernounn3reducernounn4wasternounn5weakenernounn6abaserverb, nounv, n7drainerverb, nounv, n8negatornounn9underminernoun, adjectiven, adj Alternatives for DEGRADER Words (10)belittledebasedegradedemeandevaluedisparagehumbleinsultlowerdebaserOpposite words for degrader Alternatives for DESTROYER Words (11)ruinerannihilatoreliminatorexterminatorwreckerdemolisherundoeruprooterwasterdecimatordevastatorPhrases (1)guided missile destroyerOpposite words for destroyer Alternatives for REDUCER Words (7)attenuatordamperlimitersoftenerabaterminimizerreductantPhrases (1)reducing agentOpposite words for reducer Alternatives for WASTER Words (15)dawdlerfreeloaderidlerlayaboutloaferprocrastinatorshiftlessslackerspendthriftdestroyerruinerthiefundoeruprooterwastrelOpposite words for waster