indefinably
🇺🇸
/ˌɪndɪˈfaɪnəbli/
🇬🇧
/ˌɪndɪˈfaɪnəbli/
in a way that cannot be precisely described or understood
The beauty of the sunset was indefinably mesmerizing.
日落的美丽令人难以定义地令人陶醉。