spontaneous vs instinctive

spontaneous and instinctive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spontaneous	No	Yes	No	No
instinctive	No	Yes	No	No

spontaneous (adjective)	instinctive (adjective)
happening or arising without apparent external cause	unthinking; prompted by (or as if by) instinct
said or done without having been planned or written in advance