'Severe' in the Bible

Saul agreed with putting him to death.On that day a severe persecution broke out against the church in Jerusalem, and all except the apostles were scattered throughout the land of Judea and Samaria.

Then one of them, named Agabus, stood up and predicted by the Spirit that there would be a severe famine throughout the Roman world. This took place during the time of Claudius.

For many days neither sun nor stars appeared, and the severe storm kept raging. Finally all hope that we would be saved was disappearing.