UNSOUND Antonyms There are 5 antonyms of the word unsound. (opposite meanings)Did you mean?Definition of UNSOUNDSynonyms of UNSOUNDAlso try opposite words for..unsoundestunsoundnessBest Opposite Words For UNSOUNDTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1soundverb, noun, adjectivev, n, adj2reliableadjectiveadj3solidnoun, adjectiven, adj4stableadjectiveadj5sturdyadjectiveadj Alternatives for SOUND Words (23)audioechoeffectualfathomgogoodhealthyheavyintelligentlegallevel-headedlevelheadedphoneprofoundreasonedreechoresonatestraitvocalisevocalizevoicewakelesswell-groundedPhrases (2)auditory sensationspeech soundOpposite words for sound Alternatives for RELIABLE Words (13)dependablehonesttrustworthycrediblefaithfulloyalresponsiblesolidsteadfastauthenticsecuretruetrustyOpposite words for reliable Alternatives for SOLID Words (23)substantialfirmstrongcompactconcretedensehardrigidrobuststablesturdyunyieldingclosedmassiveheartysatisfyingself-coloredself-colouredsolidnesssquareunanimousupstandingwholeOpposite words for solid Alternatives for STABLE Words (29)unchangingunvaryingbalancedconsistentconstantdependabledurableenduringevenfirmimmovablelastinglong-lastingpermanentreliableresolutesecuresettledsolidsteadfaststeadysustainedunfalteringunshakableunwaveringstringfixedstallsstaticPhrases (1)horse barnOpposite words for stable Alternatives for STURDY Words (14)hardystouttoughdurablepowerfulresilientrobustruggedsolidstronginflexiblestalwartuncompromisinggidOpposite words for sturdy