extensive

About 35.40 uses per million words.

Meaning

1. adjective Having a great extent; covering a large area; vast.
2. adjective Considerable in amount.

   I have done extensive research on the subject.

3. adjective Serving to extend or lengthen; characterized by extension.
4. adjective Having a combined system entropy that equals the sum of the entropies of the independent systems.

Similar words

wide extended far-reaching comprehensive copious large considerable abundant big sweeping

Often followed by

and use research than study experience as knowledge in

Word family

extensively extensiveness extensivenesses