We have no meanings for "so profitless" in our records yet.
1 He could not understand why Dr Porhoët occupied his leisure with studies so profitless .
2 A man less staunch and loyal might have thrown over so profitless a service.
3 But tell me what unfortunate may have the masterage of so profitless a servant as yourself?
4 He had dunned the poor drunkard for the money until he got tired of so profitless a business, and gave up the account for lost.
5 For a time Jack followed him about, but after a while wearied of so profitless an occupation, and so took to smoking on the window-ledge.
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