The phrase "formidable amount" is correct and usable in written English.
It is used to describe a large or impressive amount of something. Example: The fundraising team was able to collect a formidable amount of donations for the cause.
Rosen achieves a formidable amount in Framing Production.
Already, they say, Greece has been forgiven a formidable amount of its international debt.
This is understandable; Upworthy's distinct style has generated a formidable amount of web traffic (maybe).
Graphene is an extremely intriguing material that is arousing a formidable amount of interest in many different disciplines.
The present debate seems to have brought to light the formidable amount of middle-aged resentment harboured against the young.
"All I know is that Lance as a cyclist had a formidable amount of strength, intelligence and a strong head," he said.
It overlooks hundreds of billions of dollars the needy receive in food stamps and other benefits and the similarly formidable amounts they lose to taxes and medical care.
Supporters pointed out that the permissions had originally been granted under President George W Bush, and halting them, for example by a moratorium on the entire coastal shelf, as another Democrat candidate Bernie Sanders demanded, or by buying out the permissions, would require formidable amounts of compensation and would be likely to face a legal challenge.
He had left a wedding party after drinking "formidable" amounts of alcohol and was seen on CCTV being led to Christ's Pieces by the defendants.
The victim had just left a wedding party after drinking "formidable" amounts of alcohol and was captured on CCTV being led to the park.
The victim had left a wedding party after drinking "formidable" amounts of alcohol and was seen on CCTV being led to Christ's Pieces by the defendants.
