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 Vets' fees can be considerable, even for routine visits. = substantial + considerably con·sid·er·ably Children vary considerably in the rate at which they learn these lessons Their dinner parties had become considerably less formal. = significantly. fairly large, especially large enough to have an effect or be important inconsiderable considerable amount/number etc of sth
large or relatively large in number or amount or extent or degree; "a considerable quantity"; "the economy was a considerable issue in the campaign"; "went to considerable trouble for us"; "spent a considerable amount of time on the problem"