shapeless

Adjective

WordNet 3.0

Adjective (2)

having no definite form or distinct shape“amorphous clouds of insects”“an aggregate of formless particles”“a shapeless mass of protoplasm”Synonyms: amorphous formless
lacking symmetry or attractive form“a shapeless hat on his head”

Webster's Dictionary (GCIDE)

Shapeless \Shape"less\, a. Destitute of shape or regular form; wanting symmetry of dimensions; misshapen; -- opposed to shapely. -- Shape"less*ness, n. [1913 Webster]

The shapeless rock, or hanging precipice. --Pope. [1913 Webster]