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Synonyms of instrumental in English:


  • 1 the space program has always been instrumental in our efforts to make medical advances
    involved, active, influential, contributory;
    helpful, useful, of service;
    significant, important, crucial, critical, essential, pivotal, key;
    (be instrumental in) play a part in, contribute to, be a factor in, have a hand in;
    add to, help, promote, advance, further;
    be conducive to, lead to, cause
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