avarice
"Pristine" is a word that can be synonymous with holy and starts with the letter P.
luminosity is synonymous to brightness
"High-quality and luxury are often synonymous in the minds of consumers looking for premium products."
Decrease
Syonymous is the adjectival form of synonym.
You've spelled the word "synonymous" correctly :)
She had no greed or desire for worldly objects.
Posterior?
extend
Greed never leads to happiness, I say.
Necessary, important
Well-being.