thriftlessness

/ˈθrɪftləsnəs/
noun
  1. The quality or habit of spending money carelessly and wastefully; lack of thrift.
    • She regretted her thriftlessness after realizing how much debt she had accumulated.
    • The family's thriftlessness was evident in their constant purchases of unnecessary items.
    • His thriftlessness left him with no savings for retirement.
Antonyms