EC Antonyms There is 1 antonym of the abbr ec. (opposite meanings)Did you mean?Definition of ECAlso try opposite words for..economistecclesiasticalBest Opposite Words For ECTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1uneconomicaladjectiveadj Alternatives for UNECONOMICAL Words (11)uneconomicwastefulextravagantimprovidentinefficientlavishprofligatespendthriftsquanderingthriftlessunthriftyOpposite words for uneconomical