unresponsiveness
US /ˌʌn.rɪˈspɑːn.sɪv.nəs/
UK /ˌʌn.rɪˈspɑːn.sɪv.nəs/
1.
sự không đáp ứng
the fact of not reacting to something or of not reacting in a quick or positive way :
:
•
Customers expressed frustration at the bank's unresponsiveness to multiple complaints.