unserviceable

== English == === Etymology === From un- +‎ serviceable. === Adjective === unserviceable (not comparable) Unusable; of no use. 1591, Walter Raleigh, A Report of the Truth of the Fight about the Iles of Açores, this last Sommer betwixt the Reuenge, one of her Maiesties Shippes, and an Armada of the King of Spaine, London: William Ponsonbie; Riverside Press, 1902,[1] And that which was most to our disaduantage, the one halfe part of the men of euerie shippe sicke, and vtterly vnseruiceable. Synonym: u/s Of machinery, etc.: not working. Impractical.