Unstintingly is a related term of unstinted.

As an adverb unstintingly

is in an unstinting manner.

As an adjective unstinted is

not constrained, not restrained, or not confined.

As proper nouns the difference between azerbaijan and nakhichevan

is that azerbaijan is a country in west asia; official name: republic of azerbaijan while nakhichevan is historically a region of greater armenia, divided between the provinces vaspurakan and syunik; currently a landlocked exclave of azerbaijan, officially nakhchivan autonomous republic.

As a verb constrain

is to force physically, by strong persuasion or pressurizing; to compel; to oblige.

As an adjective unstinted is

not constrained, not restrained, or not confined.

As a verb restrain

is   to control or keep in check.

As an adjective unstinted is

not constrained, not restrained, or not confined.

As adjectives the difference between confine and unstinted

is that confine is stale while unstinted is not constrained, not restrained, or not confined.

Unconstrained is a synonym of unstinted.

As adjectives the difference between unconstrained and unstinted

is that unconstrained is not constrained while unstinted is not constrained, not restrained, or not confined.

Nakhjavan is an alternative form of nakhichevan.

As proper nouns the difference between nakhjavan and nakhichevan

is that nakhjavan is while nakhichevan is historically a region of greater armenia, divided between the provinces vaspurakan and syunik; currently a landlocked exclave of azerbaijan, officially nakhchivan autonomous republic.

Nakhdjevan is an alternative form of nakhichevan.

As proper nouns the difference between nakhdjevan and nakhichevan

is that nakhdjevan is while nakhichevan is historically a region of greater armenia, divided between the provinces vaspurakan and syunik; currently a landlocked exclave of azerbaijan, officially nakhchivan autonomous republic.

As a proper noun nakhichevan is

historically a region of greater armenia, divided between the provinces vaspurakan and syunik; currently a landlocked exclave of azerbaijan, officially nakhchivan autonomous republic.

As proper nouns the difference between syunik and nakhichevan

is that syunik is a region (marz) of the Republic of Armenia while Nakhichevan is historically a region of Greater Armenia, divided between the provinces Vaspurakan and Syunik; currently a landlocked exclave of Azerbaijan, officially Nakhchivan Autonomous Republic.