1. (a.) Full of waste; destructive to property; ruinous; as, wasteful practices or negligence; wasteful expenses.

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.) Waste; desolate; unoccupied; untilled.

baneful calamitous cataclysmal cataclysmic catastrophic consuming consumptive deadly demolishing demolitionary depredatory desolating destroying destructive devastating disastrous dissipative doomful easy come easy go extravagant fatal fateful fratricidal incontinent intemperate internecine lavish nihilist nihilistic overgenerous overlavish overliberal penny-wise and pound-foolish pound-foolish prodigal profligate profuse ravaging ruining ruinous self-destructive spendthrift subversionary subversive suicidal vandalic vandalish vandalistic wasting withering