Definition

1. Adjective:
   • Done, made, or acquired in a secret, stealthy, or unauthorized way: Describes actions or things that are intentionally kept hidden from view or knowledge, often because they are improper or forbidden.
   • Operating by stealth to avoid notice: Characterized by quiet, cautious, and secretive behavior intended to escape observation.

Usage

• The word "surreptitious" is used to describe actions, glances, activities, or methods that are deliberately concealed. It often carries a negative connotation of deceit or illegitimacy.
• It is a formal adjective. Common collocations include: .

Examples

• The spy made a surreptitious exchange of documents in the crowded market.
• She took a surreptitious photograph of the whiteboard during the meeting.
• Their surreptitious plan to undermine the project was eventually discovered.
• He cast a surreptitious look at his phone while the teacher was talking.

Advanced Usage

• "Sneak" vs. "Surreptitious": While both imply secrecy, "sneak" often describes a single, quick, covert action (e.g., a ), whereas "surreptitious" describes a more sustained, methodical, or calculated secrecy.
• In Literature: Often used to build tension or describe characters engaged in clandestine plots or observations.

Variants and Related Words

• Surreptitiously (adverb): In a secret or stealthy manner.
  • He surreptitiously slipped the note into her bag.
• Surreptitiousness (noun, rare): The quality of being surreptitious.

Synonyms

• Clandestine: Kept secret or done secretively, especially for illicit purposes.
• Covert: Not openly acknowledged or displayed.
• Furtive: Attempting to avoid notice or attention, typically because of guilt or a belief that discovery would lead to trouble.
• Stealthy: Behaving or done in a cautious and surreptitious manner.
• Undercover: Involving secret work for investigation or spying.

Antonyms

• Open
• Overt
• Aboveboard
• Public

Idioms and Phrases

• "On the sly": This informal idiom is a close conceptual match, meaning secretly, especially to avoid disapproval.
  • He's been seeing her on the sly.
• "Behind someone's back": Doing something secretly and deceitfully.
  • They made the decision surreptitiously, behind the manager's back.

Adjective

1. conducted with or marked by hidden aims or methods
   • clandestine intelligence operations
   • cloak-and-dagger activities behind enemy lines
   • hole-and-corner intrigue
   • secret missions
   • a secret agent
   • secret sales of arms
   • surreptitious mobilization of troops
   • an undercover investigation
   • underground resistance
2. marked by quiet and caution and secrecy; taking pains to avoid being observed
   • a furtive manner
   • a sneak attack
   • stealthy footsteps
   • a surreptitious glance at his watch