unjustifiably
🇺🇸
/ˌʌnˌdʒʌstɪˈfaɪəbli/
🇬🇧
/ˌʌnˌdʒʌstɪˈfaɪəbli/
without a good reason
She was criticized unjustifiably for her honest opinion.
彼女は率直な意見のために不当に批判された。