I spent fourteen months at Magdalen College; they proved the fourteen months the most idle and unprofitable of my whole life."
Under the guidance of Pericles the Athenians renounced the unprofitable rivalry with Sparta and Persia, and devoted themselves to the consolidation and judicious extension of their maritime influence.
We will avoid war because it is unprofitable; and while that is not a moral reason, any reason that brings peace is fine by me.
The rugged nature of the country made slavery unprofitable, and time only increased the social, political and economic differences between the two sections of the state.
The Belgian state telegraphs were started in 1850 and were at first very profitable, but for the years 1866-9 they yielded an average profit of only 2.8 per cent., and subsequently failed to earn operating expenses, the reasons for the steady decline of the profits being the opening of relatively unprofitable lines and offices, increases in wages, and a diminution in growth of the foreign and transit messages which had constituted the most profitable part of the whole business.