undetectable

Meaning

Impossible to find or notice.

Examples

• The virus was undetectable in his blood tests.
• Her presence in the room was undetectable.

Pronunciation: /ˌʌndɪˈtɛktəbl/

How to Use undetectable

undetectable by (prepositional phrase)

Impossible to find or notice using a specific method or tool. — "The submarine remained undetectable by enemy sonar."

undetectable to (prepositional phrase)

Impossible to find or notice for a particular observer or system. — "The subtle changes were undetectable to the untrained eye."

Synonyms of undetectable

Words with a similar meaning to undetectable:

• hidden
• unseen
• imperceptible
• invisible

Antonyms of undetectable

Words with the opposite meaning to undetectable:

• detectable
• obvious
• apparent