adj.不真实的，假的，无事实根据的，不忠实的，不忠诚的

The rumor that she won the lottery is utterly untrue.
这个她中了彩票的谣言完全是假的。
It's untrue that all cats hate water; some actually enjoy swimming.
并非所有的猫都讨厌水，有些猫实际上喜欢游泳。
The claim that he never sleeps is completely untrue; he needs at least six hours a night.
说他从不睡觉是完全不真实的，他每晚至少需要六个小时的睡眠。
The movie portrays an untrue image of historical events, distorting the facts for dramatic effect.
这部电影对历史事件的描绘并不真实，为了戏剧效果扭曲了事实。
The statement that the Earth is flat is an untrue belief that has been debunked by science.
地球是平的这个观点是一个已被科学证伪的不真实信念。
The accusation that I stole the money is utterly without foundation and therefore untrue.
指控我偷钱是毫无根据的，因此是不真实的。
The portrayal of all teenagers as reckless and irresponsible is an untrue stereotype.
把所有青少年描绘成鲁莽不负责任的是一个不真实的刻板印象。
It's untrue that exercise alone can cure obesity; a balanced diet is also crucial.
单纯依靠运动就能治愈肥胖是不真实的，均衡饮食同样至关重要。
The assertion that humans only use 10% of their brain capacity is a common but untrue myth.
人类只使用了大脑10%的能力这种说法是一个常见的但不真实的迷思。
The claim that the product can reverse aging is not supported by scientific evidence and thus untrue.
该产品能逆转衰老的说法没有科学证据支持，因此是不真实的。