简单释义：

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adj. 无理由的；无根据的

网络 没有理由的；没有根据的；毫无根据

完整释义：

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adj.

1.没有根据的,没有理由的
2.多余的;无根据,毫无根据的

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例句：

1. He said they had voiced worries about dangerous space debris and escalating military rivalry in space, but said such fears were groundless.
   他说这些国家担心太空碎片会有危险以及太空军事竞争升级，但是他说这些担心毫无根据。

2. He thought the accusations were groundless and the Unipresident Lions have seriously tarnished his name.
   认为这是莫须有的罪名，统一狮的说法已经严重污辱他的人格。

3. There was mistrust and misunderstandings among practitioners, gossips behind backs, even groundless rumours.
   同修之间产生了不信任、误解，背后嘀咕，甚至还有一些无中生有的谣言。

4. He said claims that their friendship turned sour over the battle for the top post were groundless.
   他称有关传言指他俩因竞逐处长职位而不和是毫无根据的。

5. This, he said, will lead to an increase in claims that judges are biased, "however groundless those charges may be. "
   他说，这将导致增加人们声称法官偏袒的主张，“而不管这些指控可能多么毫无根据”。

6. 'The only objective of these farcical and groundless trials is to defame me in the media, ' Mr. Berlusconi told reporters.
   贝卢斯科尼对记者们说，检方提出的这一系列看似闹剧且毫无根据的指控就是为了在媒体上诋毁他。

7. The company, which runs car dealerships on Long Island, said Stevens's complaint is groundless.
   这家公司是纽约长岛的汽车代理商。它声称史蒂文斯的控诉是毫无根据的。

8. It is groundless and ridiculous to say that Chinese troops are in Pakistan-administered Kashmir for construction.
   有关中国军队在巴控克区开展建设的说法毫无依据，十分荒谬。