prodigality vs high life

prodigality and high life both are nouns.

Word	Noun	Adjective	Verb	Adverb
prodigality	Yes	No	No	No
high life	Yes	No	No	No

As nouns, prodigality and high life are synonyms defined as:

Other synonyms of prodigality include extravagance, highlife, lavishness.

prodigality (noun)	high life (noun)
the activity of excessive spending	the activity of excessive spending
the trait of spending extravagantly