reduce vs obscure

reduce is not an adjective while obscure is an adjective.

Word	Noun	Adjective	Verb	Adverb
reduce	No	No	Yes	No
obscure	No	Yes	Yes	No

As verbs, obscure is a hyponym of reduce; that is, obscure is a word with a more specific, narrower meaning than reduce:

reduce (adjective)	obscure (adjective)
	difficult to find
	marked by difficulty of style or expression
	not drawing attention
	not famous or acclaimed
	not clearly expressed or understood
	remote and separate physically or socially

reduce (verb)	obscure (verb)
take off weight	make unintelligible or unclear
cut down on; make a reduction in	make undecipherable or imperceptible by obscuring or concealing
narrow or limit	reduce a vowel to a neutral one, such as a schwa
cook until very little liquid is left	make unclear, indistinct, or blurred
to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons	make less visible or unclear
make smaller
reduce in size; reduce physically
make less complex
reduce in scope while retaining essential elements
lessen the strength or flavor of a solution or mixture
be cooked until very little liquid is left
be the essential element
destress and thus weaken a sound when pronouncing it
undergo meiosis
reposition (a broken bone after surgery) back to its normal site
lower in grade or rank or force somebody into an undignified situation
lessen and make more modest
simplify the form of a mathematical equation of expression by substituting one term for another
bring to humbler or weaker state or condition
put down by force or intimidation