YO Antonyms There is 1 antonym of the word yo. (opposite meanings)Did you mean?Definition of YOBest Opposite Words For YOTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1nonounn Alternatives for NO Words (6)naynobeliumnumeralrimescalarnopePhrases (2)atomic number 102no moreOpposite words for no