Definition: (1) overwhelming with wonder; shocking; (2) gobsmacked

• If we all did the things we are capable of doing, we would literally astound ourselves. — Thomas Alva Edison (1847-1931) American inventor
• The game of life is a game of boomerangs. Our thoughts, deeds and words return to us sooner or later with astounding accuracy. — Florence Scovel Shinn (1871–1940) American artist & book illustrator