astounded vs stunned

astounded and stunned both are adjectives.

Word	Noun	Adjective	Verb	Adverb
astounded	No	Yes	No	No
stunned	No	Yes	No	No

As adjectives, astounded and stunned are synonyms defined as:

astounded and stunned: filled with the emotional impact of overwhelming surprise or shock

Other synonyms of astounded include amazed, astonied, astonished.

astounded (adjective)	stunned (adjective)
filled with the emotional impact of overwhelming surprise or shock	in a state of mental numbness especially as resulting from shock
	filled with the emotional impact of overwhelming surprise or shock
	knocked unconscious by a heavy blow