GLASS IN Antonyms There are 2 antonyms of the phrase glass in. (opposite meanings)Did you mean?Definition of GLASS INAlso try opposite words for..glassedglassesBest Opposite Words For GLASS INTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1opaqueadjectiveadj2solidnoun, adjectiven, adj Alternatives for OPAQUE Words (3)blurcloudunintelligibleOpposite words for opaque Alternatives for SOLID Words (23)substantialfirmstrongcompactconcretedensehardrigidrobuststablesturdyunyieldingclosedmassiveheartysatisfyingself-coloredself-colouredsolidnesssquareunanimousupstandingwholeOpposite words for solid