1. Given to, or evincing, thrift; characterised by economy and good menegement of property; sparing; frugal. Her chaffer was so thrifty and so new. (Chaucer) I am glad he hath so much youth and vigor left, of which he hath not been thrifty. (swift)
3. Growing rapidly or vigorously; thriving; as, a thrifty plant or colt.
Synonym: frugal, sparing, economical, saving, careful.
Origin: Thriftier; Thriftiest.