INSTALMENT Antonyms There are 2 antonyms of the word instalment. (opposite meanings)Did you mean?Definition of INSTALMENTSynonyms of INSTALMENTAlso try opposite words for..instalinstalmentsinstallmentsBest Opposite Words For INSTALMENTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb Expand?WordSave?Synonyms..UsageTypeentiretynounnnoun • the state of being total and completelump sumnounnnoun • a complete payment consisting of a single sum of money Alternatives for ENTIRETY Words (14)totalitywholeaggregateallcollectioncompletenessentiretyeverythingfullnessmasssumunityentirenessintegralityOpposite words for entirety