stabbing vs piercing

stabbing and piercing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stabbing	No	Yes	No	No
piercing	No	Yes	No	No

As adjectives, stabbing and piercing are synonyms defined as:

Other synonyms of stabbing include cutting, keen, knifelike, lancinate, lancinating.

stabbing (adjective)	piercing (adjective)
causing physical or especially psychological injury	having or demonstrating ability to recognize or draw fine distinctions
painful as if caused by a sharp instrument	painful as if caused by a sharp instrument