Synonyms and antonyms of Words used to describe wasteful actions and people in American Thesaurus

wasteful (adjective)

using something carelessly, so that some of it is wasted

extravagant (adjective)

using too much of something

prodigal (adjective)

formal wasting a lot of money or supplies

profligate (adjective)

formal wasting money or other things

waster (noun)

British someone or something that wastes time, money, or other valuable things