rickety

inclined to shake as from weakness or defect; "a rickety table"; "a wobbly chair with shaky legs"; "the ladder felt a little wobbly"; "the bridge still stands though one of the arches is wonky"

affected with, suffering from, or characteristic of rickets; "rickety limbs and joints"; "a rachitic patient"

lacking bodily or muscular strength or vitality; "a feeble old woman"; "her body looked sapless"