breathtaking

breathtaking /ˈbrɛθˌteɪkɪŋ/ adjective
breathtaking
/ˈbrɛθˌteɪkɪŋ/
adjective
Britannica Dictionary definition of BREATHTAKING
[more breathtaking; most breathtaking]
1 
: very exciting : thrilling
2 
: very great or surprising

— breathtakingly

adverb