Wiktionary
a. Not able to be traced or track down
WordNet
adj. incapable of being traced or tracked down; "an untraceable source" [ant: traceable]
Wikipedia
Untraceable is a 2008 American thriller film starring Diane Lane, Colin Hanks, Billy Burke, and Joseph Cross. It was directed by Gregory Hoblit and distributed by Screen Gems.
Set in Portland, Oregon, the film involves a serial killer who rigs contraptions that kill his victims based on the number of hits received by a website KillWithMe.com that features a live streaming video of the victim. Millions of people log on, hastening the victims' deaths.
The film received negative reviews from critics.
Usage examples of "untraceable".
It had been prepared furtively, its makers were untraceable, and the proper formula was not worked out and made controllable until our insane world was well in the grip of the harsh humanity of the Air Dictatorship.
Unaccountable hostile aeroplanes with untraceable bombs appeared in the sky and came humming over the sea to Japan.
A certain manufacture of footwear went on in some centre in Bohemia, now untraceable, and next to Spain ranked Central Europe in the order of shoe welfare.
The duct tape used to bind Jamie Turner was untraceable, as were the Tabasco and ammonia that had stung his eyes.
She remembered his talk about throwdown guns, untraceable because the serial number had been eradicated.
He only had to turn his back for a second and bang, a bullet in the temple, fired by the untraceable gun.
I found several large payments of untraceable cash in his checking account for a total of nearly thirty thousand dollars.
His phantom course was untraceable as he reached a side street and moved from the avenue.
Then he pulled one of the two untraceable 4627 prepaid cell phones he was carrying out of his leather jacket, dialed 17, which is the two-digit toll-free number for the Paris region Gendarmerie Nationale, and, using a Marseillaise accent, told the police operator there was a kidnapping of an American diplomat in progress on rue General de Gaulle in Cormeilles-en-Parisis and that four vehicles were involved.
Laundered funds were an everyday necessity for intelligence agencies, but almost always they were relatively small sums, untraceable payments to agents and contacts.
Maltreat children and animals, make slanderous but untraceable statements.
He had been untraceable from the day he had left, and she had thought: What freedom these aliens have!
There was an untraceable rumor in the Hotel Lotus that Madame was a cosmopolite, and that she was pulling with her slender white bands certain strings between the nations in the favor of Russia.
He had recently discovered some recordings of Dardanian music, and now, even as he worked, he was listening to the sounds of unidentifiable instruments, untraceable melodies.
He blew like a windball, vagrant on the periphery in untraceable patterns, and the heavy cudgel, thrashing hard through the air, whined empty on the place where the ollave had been standing.