1. 不成形的：shaped 成形 | shapeless 不成形的 | shapelessly 不成形地

2. 无定形的：shape of tree 授型 | shapeless 无定形的 | shark 沙鱼

3. 没有形状的：shape 型状 | shapeless 没有形状的 | share 份儿

4. 难看的：Luscious 肉感的 | Shapeless 难看的 | Tender 柔和的

1. 不成形的;无定形的;样子不好看的
    Something that is shapeless does not have a distinct or attractive shape.

    e.g. Aunt Mary wore shapeless black dresses.
           玛丽姨妈总是穿一些没款没形的黑色裙子。

adj

1. lacking symmetry or attractive form

    e.g. a shapeless hat on his head

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: amorphousformless