The rumours were completely baseless.是什么意思？

The rumours were completely baseless.

那些谣传毫无根据。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

rumours

n. 传闻( rumour的名词复数 )，风闻，谣言，谣传；

例句
The city was agog with rumours last night that the two had been executed.
那两人已被处决的传言昨晚搞得全城沸沸扬扬。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

completely

adv. 完全地，完整地，完全，彻底，全部，一干二净，很，非常，充分，十分，万分；

例句
...a second career which absorbed her more completely than her acting ever had.
比演艺生涯更让她投入的又一职业

baseless

adj. 无根据的，胡枝扯叶；

例句
It is a baseless conjecture.
这是毫无根据的猜想.