impeccable
/ɪmˈpekəbl/adjective
1- (of behaviour, performance, or appearance) in accordance with the highest standards of propriety; faultless（行为, 表演, 外表）最佳的, 完美的：
a man of impeccable character.
品质完美的人。
1.1
- Theology, rare not liable to sin【神学】〈罕〉不会犯罪过的。
派生词
impeccability
nounimpeccably
adverb词源
mid 16th cent. (in the theological sense)： from Latin impeccabilis, from in- 'not' + peccare 'to sin'.