restraint vs inhibition

restraint and inhibition both are nouns.

Word	Noun	Adjective	Verb	Adverb
restraint	Yes	No	No	No
inhibition	Yes	No	No	No

As nouns, inhibition is a hyponym of restraint; that is, inhibition is a word with a more specific, narrower meaning than restraint:

Other hyponyms of restraint include self-restraint, temperateness, moderation, temperance, continence.

restraint (noun)	inhibition (noun)
the act of controlling by restraining someone or something	(psychology) the conscious exclusion of unacceptable thoughts or desires
a device that retards something's motion	the action of prohibiting or inhibiting or forbidding (or an instance thereof)
discipline in personal and social activities	the quality of being inhibited
lack of ornamentation	(physiology) the process whereby nerves can retard or prevent the functioning of an organ or part
a rule or condition that limits freedom
the state of being physically constrained