Jaw-droppingly

adv.energetic, joyfulplayful

What it means

In a manner that is astonishingly impressive, beautiful, or extreme.

Reach for it when intensifying lively praise when ordinary emphasis would undersell the result

The tiny observatory produced a jaw-droppingly clear image of Saturn.

everyday
amazingly
casual surprise is the only effect needed
not when Amazingly is broad and often diluted by overuse.
everyday
astonishingly
surprise matters without a slangy tone
not when Astonishingly can introduce bad news and lacks automatic admiration.
everyday
spectacularly
the manner is visually dramatic or publicly exciting
not when Spectacularly can also intensify failure, so the compliment needs context.
warm
stunningly
appearance or execution creates immediate admiration
not when Stunningly is smoother but less playful than jaw-droppingly.
professional
exceptionally
measured quality clearly exceeds the norm
not when Exceptionally is restrained and does not convey a stunned reaction.
literary
breathtakingly
beauty or scale deserves lyrical emphasis
not when Breathtakingly can sound overwrought for efficiency or accuracy.

jaw-droppingly beautiful
The reef looked jaw-droppingly beautiful after the water cleared.
jaw-droppingly good
The student orchestra sounded jaw-droppingly good in the new hall.
jaw-droppingly intricate
The clock's interior was jaw-droppingly intricate under magnification.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.