CAST-IRON Antonyms There are 5 antonyms of the word cast-iron. (opposite meanings)Did you mean?Definition of CAST-IRONSynonyms of CAST-IRONBest Opposite Words For CAST-IRONTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1brittleadjectiveadj2delicateadjectiveadj3flimsyadjectiveadj4fragileadjectiveadj5weakadjectiveadj Alternatives for BRITTLE Words (15)breakablecrispcrispydelicatefragilefrailfrangiblesensitiveweakcrunchybricklebricklytoffeetoffyunannealedOpposite words for brittle Alternatives for DELICATE Words (30)fragilefrailsoftticklishairybreakabledaintydinkyelegantetherealexquisitefeeblefinegentlegracefulintricatelightpreciousrefinedsensitiveslightsubtletenderthinunreliableunsafeunstableweakfinespuntouchyOpposite words for delicate Alternatives for FLIMSY Words (16)fragilefeebleweakinsubstantialslighttenuousthindelicateflabbyfraillightunsubstantialunconvincingflexibleshakyonionskinOpposite words for flimsy Alternatives for FRAGILE Words (14)breakabledelicatebrittlefrangiblevulnerableweakdestroyabledestructibleflimsyfrailfriableslighttenuousthinOpposite words for fragile Alternatives for WEAK Words (20)feeblefrailwateryassailabledebiledecrepitdilutefaintfallibleimperfectinfirmlightpowerlessricketysaplessunaccentedvinciblevulnerablewashyweaklyOpposite words for weak