profligate vs waster

profligate and waster both are nouns.

Word	Noun	Adjective	Verb	Adverb
profligate	Yes	Yes	No	No
waster	Yes	No	No	No

As nouns, waster is a hyponym of profligate; that is, waster is a word with a more specific, narrower meaning than profligate:

Other hyponyms of profligate include scattergood, spend-all, spender, spendthrift, wastrel.

profligate (noun)	waster (noun)
a dissolute man in fashionable society	someone who dissipates resources self-indulgently
a recklessly extravagant consumer	a person who destroys or ruins or lays waste to

profligate (adjective)	waster (adjective)
unrestrained by convention or morality
recklessly wasteful