stymie vs obstruct

stymie is a noun but obstruct is not a noun.

Word	Noun	Adjective	Verb	Adverb
stymie	Yes	No	Yes	No
obstruct	No	No	Yes	No

As verbs, stymie and obstruct are synonyms defined as:

stymie and obstruct: hinder or prevent the progress or accomplishment of

Other synonyms of stymie include block, blockade, embarrass, hinder, stymy.

stymie (noun)	obstruct (noun)
a thwarting and distressing situation
a situation in golf where an opponent's ball blocks the line between your ball and the hole

stymie (verb)	obstruct (verb)
hinder or prevent the progress or accomplishment of	block passage through
	shut out from view or get in the way so as to hide from sight
	hinder or prevent the progress or accomplishment of