very large in expanse or scope; "a broad lawn"; "the wide plains"; "a spacious view"; "spacious skies"
2
flat
having a horizontal surface in which no part is higher or lower than another; "a flat desk"; "acres of level farmland"; "a plane surface"
1
great
relatively large in size or number or extent; larger than others of its kind; "a great juicy steak"; "a great multitude"; "the great auk"; "a great old oak"; "a great ocean liner"; "a great delay"