Astonish Direct

: Stresses being unexpected, but not necessarily unusual.

is a verb that means to surprise or impress someone very much, often to the point of disbelief or wonder. Definition and Nuance astonish

: Often suggests a sense of bewilderment or being lost in wonder. Linguistic Profile Astonish - Etymology, Origin & Meaning : Stresses being unexpected, but not necessarily unusual

: Implies a discovery or event so great it feels impossible or overwhelming. : Stresses being unexpected

While often used interchangeably with "amaze" or "surprise," implies a degree of unexpectedness that seems almost incredible.