GASSIEST Antonyms There are 4 antonyms of the word gassiest. (opposite meanings)Did you mean?Definition of GASSIESTAlso try opposite words for..gasgassygasifyBest Opposite Words For GASSIESTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1deflatedverb, adjectivev, adj2emptiestadjectiveadj3leanestadjectiveadj4thinnestadjectiveadj Alternatives for DEFLATED Words (26)bluecrestfallendejecteddemoralizeddepresseddespondentdiscourageddishearteneddispiriteddowndowncastdownheartedforlorngloomyglumlow-spiritedlugubriousmelancholymiserablemorosesadsorrowfulunhappywoefulmopeypunctureOpposite words for deflated Alternatives for EMPTIEST Words (13)abandoncleancleardischargeempty-belliedevacuatehollowleerunoccupiedvacatevacuousvoidtoomOpposite words for emptiest Alternatives for LEANEST Words (9)deficientdiluteinsufficientlithepoorscarcesparsesveltewillowyOpposite words for leanest Alternatives for THINNEST Words (26)leanestskinniestslimmestreduceslenderslightslimsparsecutdilutefineflimsyfragileleannarrowreedyrunnyscantscarceskinnyslenderizesveltetenuousthinlywaterywaifishPhrases (3)melt offslim downthin outOpposite words for thinnest