indefinably
🇺🇸
/ˌɪndɪˈfaɪnəbli/
🇬🇧
/ˌɪndɪˈfaɪnəbli/
in a way that cannot be precisely described or understood
The beauty of the sunset was indefinably mesmerizing.
夕日の美しさは言葉では表現しきれないほど魅惑的でした。