unashamed
adjective uk/ˌʌn.əˈʃeɪmd/ us/ˌʌn.əˈʃeɪmd/
不知羞耻的，不害臊的;无顾忌的
not ashamed; without hiding behaviour or opinions that other people might consider unacceptable
Afterwards he spent five minutes with the president, of whom he is an unashamed admirer. 之后他与自己狂热崇拜的总统呆了5分钟。
We then checked into the hotel for a weekend of unashamed luxury. 我们随后入住宾馆，无所顾忌地享受了一个奢侈周末。