
Confound
Unexpected Behavior
Use 'confound' when someone acts against what others predict or foresee.

She confounded her critics by donating her entire fortune to charity.
Sudden Surprise
Conveys a strong and often immediate feeling of surprise or disbelief.

His ability to solve complex problems so quickly completely confounded me.
Compare with
BaffleBewilderFlummoxFrustrateMystifyPerplexPuzzleStumpStymie
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