UPTIMES Antonyms There are 2 antonyms of the word uptimes. (opposite meanings)Did you mean?Definition of UPTIMESSynonyms of UPTIMESAlso try opposite words for..uptimeBest Opposite Words For UPTIMESTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1downtimesnounn2downtimenounn