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untappable

untappable

8.2
No one can listen to or access phone calls and messages
  • adjective
  • /ʌnˈtæpəbl/
  • Specialized
translation icon : ininterceptable
  • The government invested heavily in technologies that promised untappable phone lines for secure discussions.

Examples

  • Researchers developed a new method for untappable transmission of data, ensuring complete confidentiality.

  • Untappable communication.

    Fiction book (1993)

  • In an effort to ensure privacy, they used untappable communication devices that could not be intercepted.

Synonyms

impenetrable
vsuntappable
19 7.3

Not possible to enter or go through

is specifically about blocking interception or electronic access rather than physical entry
impregnable
vsuntappable
10 7.9

Too strong and well protected for anyone to capture or defeat

is about preventing interception or access rather than resisting military defeat
untouchable
vsuntappable
3 7.7

Too difficult for people to reach or get

means unreachable by interception but stresses general inaccessibility rather than technical security
tamper-proof
vsuntappable
1 4.2

Made so people cannot open or change it without leaving a sign

is about being impossible to intercept or access rather than designed protection
unbreachable
vsuntappable
1 7.7

So strong that no one can break into or get past it

refers specifically to preventing interception or access, not physical breach
unattackable
vsuntappable
8.6

Others cannot attack or harm it

focuses on stopping interception or tapping rather than resisting attacks

Antonyms

tappable
7.2

A phone or line someone can listen to secretly

Surface Forms

untappable positive

Morphology

untappable = tappable (transparent) = un + tap + able

Formed by productive English prefix 'un-' added to 'tappable' (tap + -able); meaning 'not able to be intercepted' follows directly from the components.

Etymology

Untappable is made from un- 'not' and tap 'to listen secretly or to take from', like 'tapping' a phone line or a tree for sap. Imagine a phone line you cannot put a listening device on; that's why untappable means 'impossible to intercept or access'.