rabidity vs obstinacy

rabidity and obstinacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
rabidity	Yes	No	No	No
obstinacy	Yes	No	No	No

As nouns, obstinacy is a hypernym of rabidity; that is, obstinacy is a word with a broader meaning than rabidity:

rabidity: The property of being very extreme, unreasonable, or fanatical in opinion; excessively zealous; comparable to one with rabies.
obstinacy: resolute adherence to your own ideas or desires

Other hypernyms of rabidity include bullheadedness, obstinance, pigheadedness, self-will, stubbornness.

rabidity (noun)	obstinacy (noun)
unrestrained excitement or enthusiasm	the trait of being difficult to handle or overcome
The property of being very extreme, unreasonable, or fanatical in opinion; excessively zealous; comparable to one with rabies.	resolute adherence to your own ideas or desires