The Oxford Thesaurus An A-Z Dictionary of Synonyms - expansive adj.

1) expansible or expandable or expandible, inflatable, dilatable, extensible or extendible or extendable; extending, expanding, enlarging, spreading, opening or stretching (out) : Increased temperature causes the enlargement of expansive materials. 2) effusive, open, free, easy, genial, amiable, friendly, warm, affable, sociable, outgoing, communicative, outspoken, extrovert(ed) or extravert(ed) , talkative, loquacious, garrulous, frank, unreserved: William became relaxed, almost expansive over the meal. 3) broad, extensive, far-reaching, wide-ranging; comprehensive, widespread, all-embracing, (all-) inclusive: We stood on the edge of an expansive desert. The company has expansive interests in Europe.