A massive [house, garden, truck, living room, country], a massive hole in the [ground, wall, window], a massive [crowd, gathering, audience], more. Collins cobuild advanced learner’s dictionary. Bulky and heavy. Very large, solid, and heavy: Definition of massive. Definition of massive adjective in oxford advanced learners dictionary. Massive meaning, definition, what is massive: Consisting of or forming a large mass; He died six weeks later of a massive heart attack. Large or imposing, as in quantity, scope, degree, intensity, or scale: See examples of massive used in a sentence. · massive (comparative more massive, superlative most massive) very large in size or extent. How to use massive in a sentence. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels. A group of people who spend time together and live in…. Local defense must be reinforced by the further deterrent of massive retaliatory power (john foster dulles). Very large in size, amount, or number: Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The meaning of massive is forming or consisting of a large mass. If you describe a medical condition as massive, you mean that it is extremely serious.