Not refundable; not able to be refunded.(adjective)
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Use "nonrefundable" in a sentence
"Under rules for these cheaper, so-called nonrefundable fares, rebooking would have cost an extra $150 to cover the penalty fee for changing a reservation, as well as any difference between the original fare and the one that the airline was later charging."
"Finally, the package was nonrefundable, which is true for many package deals, so I bought trip insurance (something I don't normally do) because I did not want unexpected illness or anything else to cause me to lose my money."
"Note that these tax credits are "nonrefundable," meaning that taxpayers can't get more back in credits than they pay in federal income tax."