1. having no definite or regular shape or form
2. lacking attractive form or structure; baggy or ill-fitting
Usage: often describing clothing

Examples

• The clay remained a shapeless mass until the artist began working with it.
• She wore a shapeless sweater that hid her figure completely.
• The fog created shapeless shadows in the distance.
• His shapeless jacket made him look much larger than he actually was.
• The melted plastic formed a shapeless blob on the hot pavement.
• The old dress had become shapeless after years of washing.