involuntarily
🇺🇸
/ɪnˌvɑːlənˈterəli/
🇬🇧
/ɪnˈvɒləntrəli/
without intending to or being able to control it
She shuddered involuntarily when she heard the loud noise.
她听到巨响时不由自主地颤抖。
without the person wanting it to happen
He was involuntarily committed to a mental institution.
他被非自愿地送进了精神病院。