资料来源 : pyDict

不节俭的,无储蓄心的,浪费的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Thriftless \Thrift"less\, a.
   Without thrift; not prudent or prosperous in money affairs.
   -- {Thrift"less*ly}, adv. -- {Thrift"less*ness}, n.

资料来源 : WordNet®

thriftless
     adj : careless of the future