undetected

/'ʌndi'tektid/

Thân thiện

She hoped her small mistake would remain undetected.

Definition

1. Adjective:
   • Not perceived or discovered: Describes something that has not been noticed, found, or identified by anyone. It often implies that something exists or has happened without being observed or detected by senses, instruments, or people.

Usage

• The adjective undetected is used to describe a state of not having been found out. It is commonly used in contexts involving surveillance, science, security, medicine, and everyday situations where something goes unnoticed.
• It typically follows a linking verb like "be," "remain," or "go," or comes before a noun it modifies.

Examples

• As an adjective after a linking verb:
  • The spy remained undetected for years.
  • A small error in the code went undetected until it caused a major system failure.
• As an adjective before a noun:
  • They searched for any undetected flaws in the design.
  • The patient had an undetected heart condition.

Advanced Usage

• "to escape undetected": to get away without being noticed or caught.
  • The thief managed to escape undetected through the back door.
• "to lie undetected": to remain hidden or unnoticed for a period of time.
  • The virus can lie undetected in the body for months.

Variants and Related Words

• Detect (verb): to discover or identify the presence of something.
  • The test can detect the disease early.
• Detection (noun): the action or process of identifying the presence of something.
  • Early detection of cancer improves survival rates.
• Undetectable (adjective): impossible to detect or discover.
  • The substance is odorless and undetectable by human senses.

Synonyms

• Unnoticed: not observed or noticed.
• Unobserved: not seen; not watched.
• Hidden: kept out of sight; concealed.

Antonyms

• Detected: discovered or noticed.
• Noticed: become aware of; observed.
• Discovered: found or learned about for the first time.

Related Phrases

• Undetected for a long time: not discovered over an extended period.
  • The ancient ruins lay undetected for a long time beneath the sand.
• Pass undetected: to go by without being discovered.
  • The counterfeit bills were so good they almost passed undetected.

Học thuật

Adjective

1. not perceived or discerned
   • they feared some undetected trace of poison
   • she looked around to be sure her faux pas was undetected