hinderance vs obstacle

hinderance and obstacle both are nouns.

Word	Noun	Adjective	Verb	Adverb
hinderance	Yes	No	No	No
obstacle	Yes	No	No	No

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

hinderance: something immaterial that interferes with or delays action or progress
obstacle: something immaterial that stands in the way and must be circumvented or surmounted

Other hyponyms of hinderance include albatross, millstone, bind, diriment impediment, drag, obstruction, straitjacket.

hinderance (noun)	obstacle (noun)
the act of hindering or obstructing or impeding	an obstruction that stands in the way (and must be removed or surmounted or circumvented)
any obstruction that impedes or is burdensome	something immaterial that stands in the way and must be circumvented or surmounted
something immaterial that interferes with or delays action or progress