The phrase "substantial windfall" means a large amount of unexpected money or financial gain. It refers to a significant sum of money that someone receives unexpectedly, often resulting in a sudden improvement in their financial situation.
Sentences with «substantial windfall»
That amounts to a substantial windfall for the employees. (vox.com)
Selling your home for a profit can mean a substantial windfall. (nerdwallet.com)
if i would get a substantial windfall at this time, i think i would expand my online business and if there is more remaining, get a macbook pro:) (milliondollarjourney.com)