[ ik-sten-siv-lee ]
See synonyms for extensively on Thesaurus.com
  1. so as to cover a wide range or area; broadly: He reads and travels extensively and is regarded as one of the best-informed men anywhere.

  2. in a far-reaching, comprehensive way; thoroughly: All the science departments have been extensively renovated, with new tutorial rooms and well-equipped laboratories.

  1. at great length or in great detail:He spoke extensively about the threats his daughter faces as a transgender individual.

  2. to a great degree or in great amounts or numbers; a lot:Although the river is used extensively by boaters, no official map has been developed to show the best places to dock, things to see, and hazards to avoid.

Origin of extensively


Other words from extensively

  • non·ex·ten·sive·ly, adverb
  • pre·ex·ten·sive·ly, adverb

Words Nearby extensively

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use extensively in a sentence