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untappable
Derived word form of tap

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The result is an untappable line of communications.

From Time Magazine Archive

"I'm going to try a diversionary tactic," Gunderson said on untappable tight-beam.

From Postmark Ganymede by Silverberg, Robert