The phrase "a serious fear" is correct and usable in written English.
You can use it when describing a fear that is significant or deeply felt, often in contexts discussing anxiety, phobias, or concerns.
Example: "She had a serious fear of heights that prevented her from enjoying outdoor activities."
Alternatives: "a deep fear" or "a significant fear".
If you've got a serious fear of heights, you are not going to be comfortable watching this movie".
With few details being presented, including how many soldiers were involved, it was unclear on Friday whether the troop movements reflected a serious fear of attack or were intended as a warning to India.
"There is a serious fear that more than a hundred thousand people will be without work," Masood Hussain, who reports on economy and politics in Kashmir for The Economic Times, India's leading business paper, said.
Yard signs and bumper stickers have sprouted, and on June 14th protesters marched to Busch stadium, one of the many fruits of Anheuser-Busch's 150 years in St Louis.Despite the local jokes about pouring Bud on Belgian waffles and Jean-Claude Van Damme karate-chopping the Clydesdale horses that pull the famous Budweiser beer wagon, a serious fear besets the opposition.
Shoring up banks en masse was meant to assure market participants that the United States government would not allow the banking system to collapse — a serious fear after the failures of Lehman, the American International Group, Washington Mutual and Wachovia over the preceding weeks.
If the counting leads to a tally that has more votes for Vice President Al Gore than for Gov. George W. Bush -- a serious fear for the Bush campaign, which has fought for a month to block recounting -- then there will almost certainly be two sets of presidential electors.
The conservative National Action Party PANN) this week claimed that a television broadcast by its mayoral candidate had been subjected to an intermittent beep.A more serious fear is vote-rigging on election day.
I now recall that she believed she had drowned in a previous life and in this, had one serious fear: "deep, dark water".
Danny's unscripted deviation (what he later referred to as "a matter of artistic interpretation") conjured up the most serious fear haunting any screenwriter whose script is being trampled on the fear that the trampler might have improved the movie.
Further bloodshed is another serious fear.
