extensive in WordNet English dictionary

1. broad in scope or content
   "across-the-board pay increases"; "an all-embracing definition"; "blanket sanctions against human-rights violators"; "an invention with broad applications"; "a panoptic study of Soviet nationality"- T.G.Winner; "granted him wide powers"
   across-the-board  all-embracing  all-encompassing  all-inclusive  blanket  broad  encompassing  extensive  panoptic  wide 
   
2. large in spatial extent or range or scope or quantity
   "an extensive Roman settlement in northwest England"; "extended farm lands"; "surgeons with extended experience"; "they suffered extensive damage"
   extensive  extended 
   
3. of agriculture; increasing productivity by using large areas with minimal outlay and labor
   "producing wheat under extensive conditions"; "agriculture of the extensive type"
   extensive