a.
1.
Large, great, capacious, wide, extended, extensive, spacious, broad, roomy.
2.
Plentiful, plenteous, abundant, abounding, overflowing, copious, full, liberal, rich, exuberant, luxurious, lavish, bountiful, generous, liberal, handsome.
3.
Diffusive, unrestricted, not contracted, not condensed, not concise, copious, grandiose.