1590s, "not limited in extent," from un- (1) "not" + past participle of bound (v.1). Sense of "generous, profuse, liberal" is recorded from 1704. Related: Unboundedness.
雙語例句
1. His advice was always sensible and his energy unbounded.
他的建議總是很明智，他的精力似乎永遠也用不完。
來自柯林斯例句
2. His energy was unbounded and his patience inexhaustible.
他有無窮的精力和無限的耐心。
來自柯林斯例句
3. His ambition is unbounded.
他的野心毫無止境.
來自《現(xiàn)代漢英綜合大詞典》
4. But, the Court continued, this discretion is not unbounded.
可是, 法院接下去闡述說, 這種自由酌處權并非毫無約束.
來自英漢非文學 - 行政法
5. Clearly each plane graph has exactly one unbounded face.