imperfectivePronunciation: /ɪmpəˈfɛktɪv/ GrammarDefinition of imperfective adjective relating to or denoting an aspect of verbs in Slavic languages that expresses action without reference to its completion. The opposite of perfective. noun (the imperfective) the imperfective aspect. imperfective in other Oxford dictionaries Definition of imperfective in the US English dictionary
