obscure vs unnoticeable

obscure and unnoticeable both are adjectives.

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

As adjectives, obscure and unnoticeable are synonyms defined as:

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

obscure (verb)	unnoticeable (verb)
make unintelligible or unclear
make undecipherable or imperceptible by obscuring or concealing
reduce a vowel to a neutral one, such as a schwa
make unclear, indistinct, or blurred
make less visible or unclear