The definition of astound is to shock, surprise or amaze.
To fill with astonishment and perplexity; confound.
(Sports) To arrange (the start of a race) with the starting point in the outside lanes progressively closer to the finish line so as to neutralize the advantage of competing in the shorter inside lanes.
To consider likely or certain:
To be startled or frightened (at); shy away
The definition of amaze means to shock or surprise someone.
Surprise is defined as to cause someone to feel amazed at something unexpected, do or say something unintentional.
To overwhelm with surprise, wonder, or bewilderment
The definition of astonish is to amaze someone.
To inspire awe in; fill with awe
To cause to be ashamed; abash:
To master, prevail over, or surmount
To pour down upon and cover over or bury beneath
(Archaic) To come together violently; collide
To elicit or arouse (a reaction or emotion, for example):
Find another word for flabbergast. In this page you can discover 27 synonyms, antonyms, idiomatic expressions, and related words for flabbergast, like: astound, dumbfound, stagger, expect, boggle, amaze, surprise, bowl over, (jocular) astonish, astonish and awe.