汉：-ness抽象名词后缀，意为“state,quality”，加在形容词之后，构成抽象名词，表示性质、情况、状态。
英：word-forming element denoting action, quality, or state, attached to an adjective or past participle to form an abstract noun, from O.E. -nes(s), from West Germanic *in-assu- (cf. O.S. -nissi, M.Du. -nisse, Du. -nis, O.H.G. -nissa, Ger. -nis, Goth. -inassus), from *-in-, noun stem, + *-assu-, abstract noun suffix, probably from the same root as L. -tudo (see -tude).

1.effortlessness
n.making no effort 毫不费力，前缀ef=ex=out，fort=strong
She plays with seemingly effortless skill.
她演奏得似乎毫不费力。

2.gracelessness
n.lacking grace;lacking a sense of what is right and proper 不优美；粗野；不知廉耻
We looked for signs of gracelessness to prove she was the princess she claimed to be.
我们试图寻找出她不够优雅的地方，以证明她不过是自我标榜的公主。

3.shamelessness
n.effrontery,immodesty 不知羞耻，无耻
In a display of utter shamelessness,he pulled out several $100 bills and began waving them in their faces.
他完全不知羞耻，掏出几百元大钞在他们面前挥舞。