stupefying vs astonishing

stupefying and astonishing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stupefying	No	Yes	No	No
astonishing	No	Yes	No	No

As adjectives, stupefying and astonishing are synonyms defined as:

stupefying and astonishing: so surprisingly impressive as to stun or overwhelm

Other synonyms of stupefying include astounding, staggering.

stupefying (adjective)	astonishing (adjective)
shocking with surprise and consternation	so surprisingly impressive as to stun or overwhelm
making physically stupid or dull or insensible	surprising greatly
so surprisingly impressive as to stun or overwhelm