The activity had lessened considerably compared to earlier in the night.

The tension at the table had lessened considerably after that.

The noise had lessened considerably by the time she got to the lowest level.

This opposition has considerably lessened since the stadium was built.

In recent years, the separation of church and chapel has lessened considerably.

They have lessened considerably, but during moments of stress my head can sometimes feel like it's coming apart.

No, my fear for this situation has lessened considerably.

Perhaps enough so that the impact was considerably lessened?

The danger of a surprise attack had been considerably lessened if not eliminated.

He also said the policy's effect would be lessened considerably by Pacific's decision not to apply the policy to the bulk of its land.