KNOW-IT-ALL Antonyms There are 3 antonyms of the phrase know-it-all. (opposite meanings)Did you mean?Definition of KNOW-IT-ALLAlso try opposite words for..itallBest Opposite Words For KNOW-IT-ALLTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1cluelessadjectiveadj2ignorantnoun, adjectiven, adj3unknowingadjectiveadj Alternatives for CLUELESS Words (10)ignorantinexperiencedobliviousunacquaintedunawareunenlighteneduninformeduninstructedunknowingunversedOpposite words for clueless Alternatives for IGNORANT Words (20)illiterateunknowingunlearnedcluelessdensedullinexperiencednaiveoblivioussimpleunawareuneducateduninformedunschooleduntaughtuntrainednescientunknowledgeableunletteredunwittingOpposite words for ignorant Alternatives for UNKNOWING Words (14)ignorantunknowledgeablecluelessinnocentnaiveobliviousunacquaintedunawareunenlighteneduninformedignorantnessnescienceunknowingnessunwittingOpposite words for unknowing