Use 'prophetically' when someone predicts something accurately before it happens. The scientist spoke prophetically about the rise in sea levels.
Pro Tip 2/3
Serious Tone
'Prophetically' often implies a serious or important message about the future. The leader warned prophetically of the coming economic crisis.
Pro Tip 3/3
Not Always True
Although 'prophetically' suggests accurate prediction, the fulfillment of the prediction isn't guaranteed. He prophetically claimed we'd all live on Mars, but it hasn't happened yet.