shape ‧ less /ˈʃeɪpləs/ BrE AmE adjective
[ Word Family: adjective : ↑ shapeless , ↑ shapely , ↑ misshapen ; verb : ↑ shape ; noun : ↑ shape ; adverb : ↑ shapelessly ]
1 . not having a clear or definite shape:
a shapeless dress
2 . something such as a book or a plan that is shapeless does not seem to have a clear structure
—shapelessly adverb