determinative Syllabification: (de·ter·mi·na·tive)Pronunciation: /dəˈtərməˌnātiv, -nətiv/Definition of determinative adjective [predic.] chiefly Law serving to define, qualify, or direct:the employer’s view is not determinative of the issue noun Grammar another term for determiner.determinative in other Oxford dictionaries Definition of determinative in the British & World English dictionary