different between shiftless vs wasteful

English

shift +? -less

shiftless (comparative more shiftless, superlative most shiftless)

Lazy, unmotivated.
- 2015, Philip E. Tetlock and Dan Gardner, Superforecasting: The Art and Science of Prediction:
  Decades ago, before credit scores, loan officers could make decisions almost whimsically and your fate could hinge on whether you reminded them of someone, or they had slept poorly the night before, or they harbored stereotypes of "shiftless blacks" and "flighty women."
Untrustworthy as a result of being incompetent at the job.
Destitute of shifts or expedients; lacking proper means.

From waste +? -ful.

wasteful (comparative more wasteful, superlative most wasteful)

Inclined to waste or squander money or resources.
Synonyms: prodigal, profligate
Antonym: unwasteful
(obsolete) Uninhabited, desolate.
- 1590, Edmund Spenser, The Faerie Queene, III.6:
  Shortly unto the wastefull woods she came, / Whereas she found the Goddesse with her crew [...].

Send