assuredness
n. 确实;自信;确信;厚颜
例句
Say it with assuredness.
自信地说出来。
Probably and yes, his assuredness are too tired.
或许是的,他确实太累了。
Life is happier if it is full of easiness and assuredness.
生命是非常美好的,如果生活中充满了从容与自信的话。