TENABLE Antonyms There are 2 antonyms of the word tenable. (opposite meanings)Did you mean?Definition of TENABLESynonyms of TENABLEAlso try opposite words for..tenabilityuntenabilityuntenablenessBest Opposite Words For TENABLETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1untenableadjectiveadj2intenableadjectiveadj Alternatives for UNTENABLE Words (1)indefensibleOpposite words for untenable