Meaning of EXTENSIVE in English
[adjective] - covering a large area; having a great rangeThe school has extensive grounds.The city of Dresden suffered from extensive bombing during the Second World War.The extensive repairs to the motorway are causing serious traffic problems.Her knowledge of music is extensive (= she knows a lot about music).The royal wedding received extensive coverage in the newspapers.
Cambridge English vocab. Кембриджский английский словарь. 2012