Use 'bewilderment' to express sudden shock that can be positive or negative. The magician's final trick left the audience in a gasp of bewilderment.
Pro Tip 2/3
Not Always Negative
'Bewilderment' doesn't always mean something is bad, sometimes it's just unexpected. Her unexpected kindness left him in bewilderment, questioning his preconceptions.
Pro Tip 3/3
Often Temporary
Use 'bewilderment' for situations likely to be resolved, not permanent confusion. The puzzle pieces created a moment of bewilderment before they all fell into place.