The phrase "astonishing rise" means a rapid and significant increase in something, often to an extent that is surprising or unexpected. Full definition
Mahrez has been one of the main inspirations behind Leicester's astonishing rise to the top of the Premier League table ahead of Sunday's trip to play third - place Arsenal at the Emirates. (caughtoffside.com)
The lorry drivers» protest in west London gathered more political attention than it might have done because there was so little other news to report on Tuesday, but it reflected a groundswell of concern across the country at the astonishing rise on oil prices to unprecedented levels. (politics.co.uk)
Pollsters say this election is even harder to call because of the astonishing rise of the SNP, the Lib Dems» collapse and the emergence of Ukip. (dailymail.co.uk)