expansive

形容词 expansive:

1. able or tending to expand or characterized by expansion
2. of behavior that is impressive and ambitious in scale or scope
   同义词：grand, heroic
3. marked by exaggerated feelings of euphoria and delusions of grandeur
4. friendly and open and willing to talk
   同义词：talkative

1. "After he'd had a few drinks, Charles became very expansive."
   "查尔斯喝了几杯酒，话就滔滔不绝了。"
2. He greeted us with an expansive gesture (eg he stretched his arms wide) and a wide smile.
   他手舞足蹈笑逐颜开地迎接我们。

ex.pan.sive

adj.（形容词）
Capable of expanding or tending to expand.
膨胀的：具有膨胀的能力或趋势的
Broad in size or extent; comprehensive:
庞大的；宏大的：
例句：
expansive police powers.
庞大的警察力量

Disposed to be open, communicative, and generous; outgoing:
豪爽的，开朗的：愿交往的，开放的，慷慨的；外出的：
例句：
Wine made the guest expansive.
酒使客人们心情舒畅

Grand in scale:
富裕的：
例句：
an expansive lifestyle.
富裕的生活方式

Psychiatry Marked by euphoria and delusions of grandeur.
【精神病学】 自大狂的：欢喜欲狂的或妄自尊大的

【引伸】
expan.sively
adv.（副词）
expan.siveness 或
ex.pansiv.ity