obstacle vs impedimenta

obstacle and impedimenta both are nouns.

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

As nouns, impedimenta is a hypernym of obstacle; that is, impedimenta is a word with a broader meaning than obstacle:

obstacle: an obstruction that stands in the way (and must be removed or surmounted or circumvented)
impedimenta: any structure that makes progress difficult

Other hypernyms of obstacle include impediment, obstructer, obstruction, obstructor.

obstacle (noun)	impedimenta (noun)
an obstruction that stands in the way (and must be removed or surmounted or circumvented)	the baggage and equipment carried by an army
something immaterial that stands in the way and must be circumvented or surmounted	any structure that makes progress difficult