thrift·less 
(thrĭftlĭs)
(thrĭftlĭs)adj.
1. Careless in handling money; wasteful.
2. Archaic Lacking usefulness or value.
thriftless·ly adv.
thriftless·ness n.
- intersexuality
- intersexually
- interspace
- interspatial
- interspecies
- interspecific
- intersperse
- interspersedly
- interspersion
- interstate
- interstellar
- interstellar medium
- interstice
- interstitial
- interstitially
- intertestamental
- intertextual
- intertextuality
- intertextually
- intertexture
- intertidal
- intertidally
- intertitle
- intertribal
- intertropical