The phrase "astounding high" is not correct in standard written English.
It seems to be an attempt to describe something that is impressively or remarkably high, but the adjective "astounding" does not typically pair with "high" in this way.
Example: "The prices for the concert tickets were astounding high, leaving many fans unable to afford them."
Alternatives: "remarkably high" or "incredibly high."
His is a story of astounding highs and devastating lows.
Motivated by that book, he began studying higher math on his own, astounding his high school teachers when he won a statewide math tournament run by Temple University in 1947.
Those astounding ceiling-high masses in the documentary I'd seen, figments of a claustrophobic subterranean bad dream, were reduced now.
Del Rio in South Texas broke a daily and monthly record with an astounding 107 degree high temperature.
Her medium is mostly blank verse in iambic pentameter, that wonderfully supple form that could accommodate both exalted poetry — "high astounding terms," in Marlowe's own phrase — and those natural, casual-seeming speech-rhythms at which Shakespeare excelled.
In a verse prologue, when Marlowe invites the audience to "View but his [Tamburlaine's] picture in this tragic glass," he had in mind little more, perhaps, than the trappings and tone of tragedy: "the stately tent of war," which is to be his scene, and "the high astounding terms," which will be his rhetoric.
It seems like not a week goes by without industrial animal food production somehow making headlines -- the H1N1 flu pandemic, astounding meat recalls, high levels of arsenic in chicken feed, or any of a dozen other concerns.
That is an astounding number, considerably higher than Anthony's isolation rate of 33% for the season, the highest in the league.
Yet, as already noted, babies and mothers die here at astounding rates, far higher than in economically comparable nations.
That's an astounding number — the highest since all the way back to that Michael Jordan-Karl Malone classic of 1998, ancient history in television-viewership terms.
