sub·sti·tu·tive \ˈsəbztəˌtüd.]iv, -bst-, -tə.ˌtyü-, -üt], ]ēv also ]əv\adjective Etymology: Latin substitutus (past participle) + English -ive : tending to afford or furnish a substitute : suitable as a replacement : making or capable of substitution < substitutive behavior > • sub·sti·tu·tive·ly\]ə̇vlē, -li\adverb