straitjacket vs impediment

straitjacket and impediment both are nouns.

Word	Noun	Adjective	Verb	Adverb
straitjacket	Yes	No	No	No
impediment	Yes	No	No	No

As nouns, impediment is a hypernym of straitjacket; that is, impediment is a word with a broader meaning than straitjacket:

straitjacket: anything immaterial that severely hinders or confines
impediment: something immaterial that interferes with or delays action or progress

Other hypernyms of straitjacket include balk, baulk, check, deterrent, handicap, hinderance, hindrance.

straitjacket (noun)	impediment (noun)
a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person	any structure that makes progress difficult
anything immaterial that severely hinders or confines	something immaterial that interferes with or delays action or progress