impact vs striking

impact and striking both are nouns.

Word	Noun	Adjective	Verb	Adverb
impact	Yes	No	Yes	No
striking	Yes	Yes	No	No

As nouns, striking is a hypernym of impact; that is, striking is a word with a broader meaning than impact:

Other hypernyms of impact include contact, impinging.

impact (noun)	striking (noun)
influencing strongly	the act of contacting one thing with another
the violent interaction of individuals or groups entering into combat	the physical coming together of two or more things
the striking of one body against another
a forceful consequence; a strong effect

impact (adjective)	striking (adjective)
	having a quality that thrusts itself into attention
	sensational in appearance or thrilling in effect

impact (verb)	striking (verb)
have an effect upon
press or wedge together; pack together