surreptitious

surreptitious
[ˌsʌrəpˈtɪʃəs]
adjective
  1. kept secret, especially because it would not be approved of
    私下的;偷偷摸摸的(尤指因为不会被批准)
    low wages were supplemented by surreptitious payments from tradesmen.
    商人私下付的报酬补充了低工资。
派生
surreptitiously
adverb
surreptitiousness
noun
语源
  1. late Middle English (in the sense 'obtained by suppression of the truth'): from Latin surreptitius (from the verb surripere, from sub- 'secretly' + rapere 'seize') + -ous
英语宝典
考试词汇表