Old English grundleas "bottomless, unfathomable, vast;" see ground (n.) + -less. Figurative sense of "having no adequate cause or reason" is from 1620s. Similar formation in Dutch grondeloos, German grundlos, Old Norse grunnlauss. Related: Groundlessly; groundlessness.
实用例句
1. A ministry official described the report as groundless.
一位部级官员称这篇报道纯属子虚乌有。
来自柯林斯例句
2. His fears might be groundless.
他的担心也许毫无根据。
来自柯林斯例句
3. Our fears proved groundless.
我们的担心证明是毫无道理的。
来自《权威词典》
4. I then made some groundless remarks , assessing the situation over - optimistically.
