undetectable

English

Etymology

From un- +‎ detectable.

Adjective

undetectable (comparative more undetectable, superlative most undetectable)

1. Unable to be detected; not detectable.
   • 1923, Arthur Michael Samuel, “Pinchbeck”, in The Mancroft Essays, page 164:

     In these days of “rolled” gold, electro-plate, and undetectable pearls, it is curious that almost the only honest Ersatz material known to the goldsmith's art should be utterly forgotten.

   • 2012, Jyoti Dhar, “A Guide to the Clinical Care of Pregnant Women with HIV”, in Mamatha M Lala, Rashid H Merchant, editors, Principles of Perinatal and Pediatric HIV/AIDS‎, Jaypee Brothers Medical Publishers (P) Ltd, →ISBN, page 317:

     A trial of scar may be justified in a woman with a previous cesarean section who is currently on HAART, has an undetectable virus and spontaneously goes into labor.

   • 2023, Paul Scharre, Four Battlegrounds: Power in the Age of Artificial Intelligence‎, W. W. Norton & Company, →ISBN:

     Some forms of data poisoning are undetectable. Attackers can insert adversarial noise into the training data, altering the training data in a way that is hidden to human observers.

Synonyms

• indetectable

Antonyms

• detectable

Related terms

• undetected (see a related note)
• untraceable

Translations

Unable to be detected

Bulgarian: неоткриваем (neotkrivaem) Finnish: ei havaittavissa French: indétectable (fr) Italian: non rilevabile Macedonian: незабе́лежлив (nezabéležliv) Polish: nieodczuwalny, niewykrywalny (pl) Portuguese: indetectável (Brazil), indetetável (Portugal) Romanian: nedetectabil Spanish: indetectable