<p><strong>Adjective</strong></p><ul><li>of great extent; wide, broad: an extensive area.</li><li>Synonyms: vast, ample, spacious, large, extended.</li><li>Antonyms: confined, narrow, limited.</li><li>covering or extending over a great area: extensive travels.</li><li>far-reaching; comprehensive; thorough: extensive knowledge.</li><li>Antonyms: parochial, confined, narrow, limited.</li><li>lengthy: an extensive journey.</li><li>great in amount, number, or degree: an extensive fortune; extensive political influence.</li><li>of or having extension: Space is extensive, time durational.</li><li>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 (intensive).</li></ul>