goosebump vs instinctive reflex

goosebump and instinctive reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
goosebump	Yes	No	No	No
instinctive reflex	Yes	No	No	No

As nouns, instinctive reflex is a hypernym of goosebump; that is, instinctive reflex is a word with a broader meaning than goosebump:

goosebump: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
instinctive reflex: an automatic instinctive unlearned reaction to a stimulus

goosebump (noun)	instinctive reflex (noun)
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation	an automatic instinctive unlearned reaction to a stimulus