unsparing vs unstinting

unsparing and unstinting both are adjectives.

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

As adjectives, unsparing and unstinting are synonyms defined as:

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

unsparing (adjective)	unstinting (adjective)
very generous	very generous
not forbearing; ruthless