thriftless[adjective]Synonyms: improvident, unthrift, unthrifty
Antonyms: thrifty
 [TahlilGaran] English Synonym Dictionary ▲
 thriftless adjective. 
['Ɵrɪftlɪs] LME.[from THRIFT noun1 + -LESS.]1.  Not thriving or prosperous; unsuccessful; unfortunate. Formerly also (
rare), not flourishing in growth. 
LME-L17.2.  Unprofitable, worthless, useless. Now chiefly 
Scot. M16.■ Shakespeare Twelfth Night What thriftless sighs shall poor Olivia breathe!3.  Wasteful, improvident, spendthrift. 
L16.■ C. S. Parker He strove..to wean his tenantry from thriftless habits. ■   thriftlessly adverb M19. ■   thriftlessness noun M19.  [TahlilGaran] English Dictionary ▲