stunned vs astonished

stunned and astonished both are adjectives.

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

As adjectives, stunned and astonished are synonyms defined as:

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

Other synonyms of stunned include amazed, astonied, astounded.

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