B1adverbacademic
US/ɪkˈsten.sɪv.li/
UK/ɪkˈsten.sɪv.li/
over a large area, or in great detail; a lot
In context
She has traveled extensively in Southeast Asia for her job.
The old house was extensively damaged in the storm.
This topic has been studied extensively, but scientists still disagree.
Words that go with extensively
verb + adverb
- travel extensivelyAs a journalist, he traveled extensively across Africa.
- write extensivelyShe has written extensively about street food culture.
adverb + verb
- extensively usedThis app is extensively used by small shops in Vietnam.
- extensively damagedSeveral bridges were extensively damaged by the floods.
- extensively researchedThe book is extensively researched and easy to read.
- extensively testedThe vaccine was extensively tested before it was approved.