high-pressure vs hard-hitting

high-pressure and hard-hitting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
high-pressure	No	Yes	No	No
hard-hitting	No	Yes	No	No

As adjectives, high-pressure and hard-hitting are synonyms defined as:

high-pressure and hard-hitting: aggressively and persistently persuasive

high-pressure (adjective)	hard-hitting (adjective)
aggressively and persistently persuasive	aggressively and persistently persuasive
	characterized by or full of force and vigor