underplay
🇺🇸
/ˌʌndərˈpleɪ/
🇬🇧
/ˌʌndəˈpleɪ/
to make something seem not as important as it actually is
He tried to underplay his mistakes so they seemed smaller.
彼は自分の過ちを小さく見せるためにそれらを軽く扱おうとした。