1 squander, misuse, throw away, fritter away, misspend, splurge, dissipate, Slang blow:
Why I wasted so much time on him I'll never know. Don't waste your money on such frivolities.
2 Often, waste away. diminish, deteriorate, dwindle, decline, decay, atrophy, wither, shrink, weaken, become debilitated, fade, become enervated or enfeebled, regress, ebb, sink:
She is just wasting away, and I am seriously worried that she may not recover.
3 enervate, enfeeble, emaciate, gnaw, destroy, consume, debilitate, exhaust, disable:
Arkwright contracted a terrible wasting disease while in the tropics.
4 assassinate, murder, kill, Slang put away, rub out, US ice:
Don't worry, Boss, we'll waste Andy and you won't have no more trouble.
5 misuse, misapplication, squandering, dissipation, misemployment, abuse, neglect:
What a terrible waste of talent to have such a person doing such lowly work! Do not let that genius go to waste.
6 wasting, extravagance, prodigality, wastefulness, squandering, indulgence, lavishness, profligacy, dissoluteness, improvidence, overindulgence:
Government waste is one of our biggest problems.
7 refuse, rubbish, garbage, dregs, debris, leavings, scrap, offscourings, sweepings, litter, Archaic orts, US and Canadian trash:
Techniques are being developed to process the waste in order to avoid using landfills, incineration, or dumping at sea.
8 wasteland, desert, wilderness, barrens, wilds, emptiness, vastness:
Beyond that system were vast wastes of uninhabited space.
9 extra, leftover, unused, superfluous, worthless, useless:
The waste food was usually fed to the animals.
10 barren, unproductive, unusable, unsalvageable, useless, unrecyclable, unprofitable, worthless:
The waste products of manufacture are a big problem.
11 lay waste. devastate, destroy, demolish, despoil, ruin, wreck, ravage, pillage, sack, plunder, loot, rob, strip, spoil, gut, ransack, wreak havoc (up)on, crush, raze, annihilate, eradicate, extirpate, wipe out:
These lands and cities, laid waste by the invaders, have never recovered.