IAPETUS Antonyms There are 3 antonyms of the word iapetus. (opposite meanings)Did you mean?Definition of IAPETUSBest Opposite Words For IAPETUSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1moonnoun, adjectiven, adj2saturnnoun, adjectiven, adj3titannounn Alternatives for MOON Words (8)daydreamlunalunationmonthmoonmoonlightmoonshinesatellitePhrases (6)lunar monthcalendar monthmoon aroundmoon onsun myung moonsynodic monthOpposite words for moon Alternatives for SATURN Words (1)planetPhrases (1)celestial bodyOpposite words for saturn Alternatives for TITAN Words (6)behemothcolossusgiantmammothmonsterheavyweightOpposite words for titan