boundless

形容词 boundless:

1. seemingly boundless in amount, number, degree, or especially extent
   同义词：unbounded, limitless

1. The setting sun has boundless beauty; Just because the yellow dusk is so near.
   夕阳无限好，只是近黄昏。
2. The setting sun had boundless beauty, Just because the yellow dusk is so near.
   夕阳无限好，只是近黄昏。
3. The masses have boundless creative power.
   人民群众有无限的创造力。
4. His boundless generosity moved us deeply.
   他的无限的慷慨深深地感动了我们。

bound.less

adj.（形容词）
Being without boundaries or limits; infinite.See Synonyms at infinite
无限制的：没有限制或界线的；无限的参见 infinite

【引伸】
bound.lessly
adv.（副词）
bound.lessness
n.（名词）