amorphous

这块黏土被揉捏成一团无定形的块状物，没有任何明确的形状。

The clay was kneaded into an ___amorphous blob, lacking any distinct shape.

他的演讲内容很丰富，但观点显得散乱无章。

His speech was informative, but the ideas were ___amorphous and hard to follow.