undercurrent
🇺🇸
/ˈʌndərkɜːrənt/
🇬🇧
/ˈʌndəkʌrənt/
A hidden feeling or force that affects a situation without being obvious.
There was an undercurrent of tension in the room during the meeting.
会議中、部屋には緊張感の暗流がありました。