As nouns the difference between terms and unthrift
is that terms is while unthrift is a lack of thriftiness; prodigality.
As an adjective unthrift is
unthrifty.
terms
English
Noun
(head)
Statistics
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unthrift
English
Noun
(
en noun)
A lack of thriftiness; prodigality.
Someone who is not thrifty; a spendthrift, someone who is not careful with their money.
*1633 , John Donne, "The Autumnall":
*:But name not Winter-faces , whose skin's slacke; / Lanke, as an unthrifts purse [...].