regretfully
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/rɪˈɡretfəli/
🇬🇧
/rɪˈɡretfəli/
Feeling or showing sadness or disappointment about something.
Emma shook her head regretfully, knowing she had missed the deadline.
Expressing sorrow or disappointment that a situation is not as desired.
Regretfully, we have to cancel the event due to bad weather.