"strong discontent" is a correct and usable phrase in written English.
You can use it when you want to express a negative emotion that is stronger than regular discontent or dissatisfaction. For example, "The angry citizens showed their strong discontent towards the government as they marched in the streets."
The prime minister faces strong discontent within his Syriza party over the deal.
He said he personally felt "this strong discontent with Europe, the Europe of the lofty speeches.
In June, many stockholders of this country's largest public corporation, Wal-Mart Stores publicly registered strong discontent with its policies.
Mr. Zapatero was elected in 2004 following the terrorist attacks on commuter trains in Madrid and amid strong discontent with Spain's involvement in the Iraq war.
Especially among the galantuomini, who had profited from French legislation, strong discontent found an outlet in a widespread secret society, I Carbonari ("The Charcoal Burners").
The scandal aroused strong discontent from PCCW's minority shareholders and triggered an investigation by the local securities watchdog, which later blocked the deal.
"This will be met with strong social discontent," Mr. Zhao said.
No matter how strong the discontent might be around a football club, nothing appeases a fanbase more than seeing an academy product shine.
He also has strong feelings about discontent and the way snails have sex.
Nevertheless, it was believed to be the first in the university's history, and it sent a strong message of discontent.
ROME — Italian voters have turned their backs on former Prime Minister Silvio Berlusconi's conservative party in local elections, according to returns, sending a strong message of discontent by backing a protest movement headed by an irascible comedian turned politician.
