From Longman Dictionary of Contemporary Englishaccumulativeac‧cu‧mu‧la‧tive /əˈkjuːmjələtɪv $ -leɪ-, -lə-/ adjective INCREASE IN NUMBER OR AMOUNTgradually increasing in amount or degree over a period of time SYN cumulative —accumulatively adverb
Examples from the Corpus
accumulative• He defined a game as a conflict of interests resolved by the accumulative choices players make while trying to anticipate each other. 