of great extent; wide; broad

an extensive area.

covering or extending over a great area

extensive travels.

far-reaching; comprehensive; thorough

extensive knowledge.

lengthy

an extensive journey.

great in amount, number, or degree

an extensive fortune; extensive political influence.

of or having extension

Space is extensive, time durational.

noting or pertaining to a system of agriculture involving the use or cultivation of large areas of land with a minimum of labor and expense ( opposed to intensive ).

adjective

limited , narrow , restricted , short , uncomprehensive

adjective

across the board , all-encompassing , all-inclusive , big , blanket * , boundless , broad , capacious , commodious , comprehensive , comprising , considerable , expanded , extended , far-flung * , general , great , hefty , huge , inclusive , indiscriminate , large , large-scale , lengthy , long , major , pervasive , prevalent , protracted , roomy , scopic , scopious , sizable , spacious , sweeping , unexclusive , universal , unrestricted , vast , voluminous , wall to wall , wholesale , wide , wide-ranging , widespread , ample , expansive , good , healthy , all-around , all-round , broad-spectrum , far-ranging , far-reaching , global , overall , wide-reaching , immense , thorough