1The company's wasteful spending on unnecessary projects led to its financial downfall.
2Is it wasteful to use single-use plastics for packaging food products?
3She was criticized for her wasteful lifestyle, which included buying expensive clothes and throwing them away after one use.
4If you are wasteful with water, you will contribute to the drought problem in our region.
5The new policy aims to reduce wasteful energy consumption by promoting the use of renewable sources.