ppl. a. [UN-1 8.] Not fixed or closed with solder. Also fig.

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1641.  J. Taylor (Water P.), Reply (title-p.), A Rusty, Rayling,… Lying Libell,… lately written by an impudent unsoder’d Ironmonger.

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1876.  Preece & Sivewright, Telegraphy, 303. The soldering iron, and fire-pot,… are more or less cumbersome, and lead to unsoldered joints remaining in the wire.

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1891.  W. Clark Russell, Curatica, 104. If he is a plumber, he will not leave your pipes unsoldered.

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