unnecessarily
🇺🇸
/ˌʌnˌnesəˈserəli/
🇬🇧
/ʌnˈnesəsərəli/
in a way that is not needed or is more than needed
She worried unnecessarily about the test because she was well prepared.
그녀는 충분히 준비했는데도 불필요하게 시험에 대해 걱정했다.