形容詞 boundless:

1. seemingly boundless in amount, number, degree, or especially extent
   同義詞：unbounded, limitless

1. The setting sun has boundless beauty; Just because the yellow dusk is so near.
   夕陽(yáng)無(wú)限好，只是近黃昏。
2. The setting sun had boundless beauty, Just because the yellow dusk is so near.
   夕陽(yáng)無(wú)限好，只是近黃昏。
3. The masses have boundless creative power.
   人民群眾有無(wú)限的創(chuàng)造力。
4. His boundless generosity moved us deeply.
   他的無(wú)限的慷慨深深地感動(dòng)了我們。

bound.less

adj.（形容詞）
Being without boundaries or limits; infinite.See Synonyms at infinite
無(wú)限制的：沒(méi)有限制或界線的；無(wú)限的參見(jiàn) infinite

【引伸】
bound.lessly
adv.（副詞）
bound.lessness
n.（名詞）