TRIMESTRAL Antonyms There are 7 antonyms of the word trimestral. (opposite meanings)Did you mean?Definition of TRIMESTRALSynonyms of TRIMESTRALAlso try opposite words for..trimesterBest Opposite Words For TRIMESTRALTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1annualadjectiveadj2biennialadjectiveadj3dailyadverb, adjectiveadv, adj4monthlyadjectiveadj5quarterlyadverb, adjectiveadv, adj6semiannualadjectiveadj7weeklyadverb, adjectiveadv, adj Alternatives for ANNUAL Words (5)yearlyyearlongannualizedone-yearyearbookOpposite words for annual Alternatives for BIENNIAL Words (3)biannualbiyearlytwo-yearOpposite words for biennial Alternatives for DAILY Words (12)everydayquotidiancommonconsistentcustomaryordinaryregularroutineusualcasualhelpmaidPhrases (3)day-to-dayday-after-dayday-by-dayOpposite words for daily Alternatives for MONTHLY Words (15)constantcontinuouscyclicaldailyeverydayincessantperiodicrecurrentregularrepeatedroutinesteadysuccessiveweeklyyearlyOpposite words for monthly Alternatives for SEMIANNUAL Words (3)biannualbiyearlyhalf-yearlyOpposite words for semiannual Alternatives for WEEKLY Words (3)hebdomadalhebdomadallyhebdomadaryPhrases (2)each weekevery weekOpposite words for weekly