Considerable means great in amount or degree.
To be without Pearce would be a considerable blow...
Doing it properly makes considerable demands on our time...
1. large or relatively large in number or amount or extent or degree;
Clive's father gave her a considerable leg up when he appointed her director of the family firm.
The repairs needed before we can occupy the house will be considerable.
The motion was carried by a considerable majority.
He owns considerable real estate.
The total sum is considerable.