来自拉丁语 speciosus,好看的，漂亮的，炫耀的，假装的，来自 specere,观看，注视，词源同 spectate,spectacle,conspicuous.后词义贬义化。

1. It is unlikely that the Duke was convinced by such specious arguments.

公爵不太可能相信这种似是而非的论点。

2. Such talk is actually specious and groundless.

这些话实际上毫无根据,似是而非的.

3. He fences his doctrines with the specious plea that statesmen mustlive as the world lives.

他用似是而非的遁词为他的教义作辩护,说政治家必须象世人那样活着.

4. His voice was still soft and filled with specious humility.

他的声音还是那么温和,甚至有点谦卑.

5. He deserves credit for resisting specious gambles in September.

他在九月间抵制了一些似是而非的冒险行动,这是值得称赞的.