orotund
/ˈɒrəʊtʌnd/adjective
1- (of the voice or phrasing) full, round, and imposing（嗓音）洪亮的; （措辞）令人难忘的。
1.1
- (of writing, style, or expression) pompous; pretentious（文章, 风格, 讲话）浮夸的; 说大话的。
派生词
orotundity
noun词源
late 18th cent.: from Latin ore rotundo 'with rounded mouth'.