within possibility

“It’s well within possibility that we could see another third wave at least comparable in terms of hospitalisations,” he said.

Experiments of this kind seem to bring it within possibility to operate a motor at any point of the earth's surface from a central source, without any connection to the same except through the earth.

Such evidence could be multiplied; but this is enough to establish the fact that for the whole breadth of the hills to have been covered with wood is well within possibility.

He thanked his stars for the evidence soon afforded him that his adopted mode of escape was within possibility, perilous though it might be; and then for the falling snow, which shielded him from sight, and for the snow already fallen, which now and then helped him to adhere to the cliff, for the irregularities of the precipice were such that the snow's lodgment had endured here and there on its steep face.

Creake has everything in his favour, but it is just within possibility that the driver of an inopportune tram might notice the appendage.