1. 没有清楚结构的;无定形的
Something that is formless does not have a clear or definite structure or shape.

e.g. A series of largely formless images rushed across the screen.
一连串相当混乱的影像在屏幕上闪过。

adj

1. having no physical form

e.g. belief in a world filled with...formless but often malevolent beings

2. having no definite form or distinct shape

e.g. amorphous clouds of insects
an aggregate of formless particles
a shapeless mass of protoplasm

Synonym: amorphousshapeless