Meanings of improvident habits in English

One individual, whose income was derived from brewery shares, attributed the prevailing distress to the drunken and improvident habits of the lower orders.

Do you think the system of being paid only once a year has the effect of producing improvident habits among the men?-I don't know.

Such was the case at the time of which we write, and the improvident habits of those people in times of superabundance began to tell.

A leak in his cabin roof,-quiteconsistent with his careless, improvident habits,-hadroused him at 4 A. M., with a flooded "bunk" and wet blankets.