(1):
(a.) Waste; desolate; unoccupied; untilled.
(2):
(a.) Expending, or tending to expend, property, or that which is valuable, in a needless or useless manner; lavish; prodigal; as, a wasteful person; a wasteful disposition.
(3):
(a.) Full of waste; destructive to property; ruinous; as, wasteful practices or negligence; wasteful expenses.