形容詞 propitious:

1. presenting favorable circumstances; likely to result in or show signs or success

1. People like to hear propitious sentences.
   人們都喜歡聽吉利的話。
2. The circumstances were not propitious for further expansion of the company.
   這些情況不利于公司的進(jìn)一步發(fā)展。
3. It was not a propitious time to start a new business.
   這個(gè)時(shí)候開張不吉利。

pro.pi.tious

adj.（形容詞）
Presenting favorable circumstances; auspicious.See Synonyms at favorable
吉祥的：表明有利形勢(shì)的；吉祥的參見 favorable
Kindly; gracious.
親切的；和藹的

來源：
Middle English propicius
中古英語 propicius
from Old French propicieux
源自 古法語 propicieux
from Latin propitius * see pet-
源自 拉丁語 propitius *參見 pet-

【引伸】
propi.tiously
adv.（副詞）
propi.tiousness
n.（名詞）