If you describe someone's behaviour or attitude as unashamed, you mean that they are open and honest about things that other people might find embarrassing or shocking.
例句
I grinned at him in unashamed delight.我高兴地朝他笑了笑，一点也不觉得难为情。...a man rightly unashamed of his own talent.对自己的能力毫不避讳的人
英汉词典释义
n.
不害臊的；厚颜无耻的
He looked at her with unashamed curiosity.他带着肆无忌惮的好奇瞧着她。
无愧的;坦然的
英英词典释义
Adjective
1. used of persons or their behavior; feeling no shame