unreservedly

US /ˌʌn.rɪˈzɝː.vɪd.li/
UK /ˌʌn.rɪˈzɝː.vɪd.li/
1.

kayıtsız şartsız

completely, without any doubts or feeling of being uncertain:

:
•
The paper's editor has apologized unreservedly to the senator.