concerned
US /kənˈsɝːnd/
UK /kənˈsɝːnd/

1.
worried, troubled, or anxious
:
•
She was very concerned about her son's health.
•
I'm a bit concerned about the rising costs.
2.
involved in or affected by something
:
•
All parties concerned should attend the meeting.
•
This issue is highly important to the people concerned.