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Webster 1913 Edition

Adj.

Profitless.

[R.]

Shak.

Adj.

Not having profit or gain.

unprofited ‎(comparative more unprofited, superlative most unprofited)

profitless
- William Shakespeare, Twelfth Night
  Be clamorous and leap all civil bound rather than make unprofited return.
(Can we find and add a quotation of Samuel Taylor Coleridge to this entry?)