moaner
🇺🇸
/ˈməʊnər/
🇬🇧
/ˈməʊnə(r)/
noun
R
a person who constantly complains in a way that is annoying to others
The office moaner always finds something to grumble about, making everyone else feel miserable.
オフィスの不満者はいつも文句を言う何かを見つけ、他の人を不愉快にさせます。
translation
不平不満家