sneaky
01
こっそり, ずるい
marked by quiet and caution and secrecy; taking pains to avoid being observed
02
こそこそした, ずる賢い
behaving in a secretive or underhanded manner, often with the intention of deceiving others
例
The sneaky student tried to cheat on the exam without getting caught.
ずる賢い学生は捕まらないように試験でカンニングしようとした。
She felt uneasy about his sneaky behavior, suspecting he was hiding something.
彼女は彼のずるい行動に不安を感じ、何かを隠しているのではないかと疑った。
