- 1covering a large area; great in amount The house has extensive grounds. The fire caused extensive damage. She suffered extensive injuries in the accident. Extensive repair work is being carried out. an extensive range of wines
- 2including or dealing with a wide range of information synonym far-reaching Extensive research has been done into this disease. His knowledge of music is extensive. She has extensive experience in computers.
adverb a spice used extensively in Eastern cooking She has traveled extensively.See extensive in the Oxford Advanced Learner's Dictionary
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