thankless
🇺🇸
/ˈθæŋkləs/
🇬🇧
/ˈθæŋkləs/
adjective
R
A task or job that is hard to do and does not get any appreciation or thanks from others.
Taking care of the kids all day can be a thankless job, but it's important for their upbringing.
一日中子供の面倒を見るのは報われない仕事かもしれないが、彼らの育成には重要だ。
translation
感謝されない