extensive
//ɪkˈstɛnsɪv//
Adjective
extensiveCanonical form
more extensiveComparative
most extensiveSuperlative
1
covering or affecting a large area; having great extent
The fire caused extensive damage to the forest.
2
large in amount or scale; comprehensive
The company conducted extensive research before launching the new product.
3
involving or dealing with many details or aspects; thorough
The police conducted an extensive investigation into the case.