New American Oxford Dictionary
undetectable
un de tect a ble |ˌəndiˈtektəbəl ʌndɪˈtektəbl | ▶adjective not able to be detected. DERIVATIVES un de tect a bil i ty noun, un de tect a bly adverb
Oxford Dictionary
undetectable
un |detect |able |ʌndɪˈtɛktəb (ə )l | ▶adjective not able to be detected. DERIVATIVES undetectability |-ˈbɪlɪti |noun, undetectably adverb
American Oxford Thesaurus
undetectable
undetectable adjective there may have been an undetectable amount of poison in the tea: unnoticeable, imperceptible, invisible, inaudible, odorless, subtle, faint, obscure; tiny, minute, infinitesimal. WORD TOOLKIT See invisible . Word Toolkits illustrate the difference between close synonyms by means of words typically used with them.
Oxford Thesaurus
undetectable
undetectable adjective there may have been an undetectable amount of poison in the tea: unnoticeable, imperceptible, invisible, inaudible, odorless, subtle, faint, obscure; tiny, minute, infinitesimal. WORD TOOLKIT undetectable See invisible . Word Toolkits illustrate the difference between close synonyms by means of words typically used with them.
Sanseido Wisdom Dictionary
undetectable
ù n de t é ct a ble 形容詞 見つけられない, 検知されない .