What is "impressibility"

Usage examples of "impressibility".

I have an affection for the road yet (though it is not so pleasant a road as it was then), formed in the impressibility of untried youth and hope.

There is often something maternal even in a girlish love, and Mary's hard experience had wrought her nature to an impressibility very different from that hard slight thing which we call girlishness.

But perhaps Dodo, if she were really bordering on such an extravagance, might be turned away from it: experience had often shown that her impressibility might be calculated on.