unsparing vs lavish

unsparing and lavish both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unsparing	No	Yes	No	No
lavish	No	Yes	Yes	No

As adjectives, unsparing and lavish are synonyms defined as:

Other synonyms of unsparing include munificent, overgenerous, too-generous, unstinted, unstinting.

unsparing (adjective)	lavish (adjective)
very generous	very generous
not forbearing; ruthless	characterized by extravagance and profusion

unsparing (verb)	lavish (verb)
	expend profusely; also used with abstract nouns