Wasteful
Part of speech: adjective
Definition: Inclined to waste or squander money or resources.
Example sentence: No matter how inured you get to atrocities, you're still always stunned and shocked by how cruel and wasteful Homo sapiens can be.
Destructive
Part of speech: adjective
Definition: Causing destruction; damaging.Causing break down or disassembly.
Example sentence: Technology is destructive only in the hands of people who do not realize that they are one and the same process as the universe.