不ふ審しん

noun, na-adjective

suspicion; doubt; questionable nature

Refers to something that seems suspicious, untrustworthy, or not quite right. Often used in compounds like 不審者 (suspicious person) or 不審に思う (to find something suspicious).

• 夜よる遅おそくに公こう園えんで不ふ審しんな男おとこを見みかけた。

  I saw a suspicious man in the park late at night.