Antonio Stradivari an·to·niost·radivari uncommon noun 1. Italian violin maker who developed the modern violin and created violins of unequaled tonal quality (1644?-1737) SynonymsStradivariAntonio StradivariStradivariusAntonius Stradivarius Related words Broader terms violin maker WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.