unsuitably
adverbUK /ʌnˈsuːtəbli/
US /ʌnˈsuːtəbli/
In a way that is not right for the situation.
She was dressed unsuitably for the cold weather.
OTHER MEANINGS
2. In a manner that does not match a person's needs or purpose.
The tool was unsuitably sized for the small job.
3. In a way that is not proper or acceptable in a social setting.
He behaved unsuitably at the formal dinner.
4. In a way that is not fitting for a particular role or position.
She was unsuitably qualified for the demanding job.