expansive
1 dilating, distending, elastic, enlargeable, expanding, extendable, inflatable, stretching, stretchy, swelling
2 all-embracing, broad, comprehensive, extensive, far-reaching, inclusive, thorough, voluminous, wide, wide-ranging, widespread
3 affable, communicative, easy, effusive, free, friendly, garrulous, genial, loquacious, open, outgoing, sociable, talkative, unreserved, warm