stealth

B2 · Upper Intermediate Aviation Technical

adj. designed to be very difficult for radar or other sensors to detect.

adj. relating to technology that reduces the radar cross-section or infrared signature of a vehicle or craft.

“The military uses stealth aircraft that can fly into enemy territory without being seen on radar.”

“Engineers focused on the unique angular geometry of the stealth bomber to ensure it remained invisible to conventional long-range tracking systems.”

C1 · Advanced Formal

adj. done in a secret way, often without people knowing the true purpose.

adj. surreptitious or not openly acknowledged; often describes marketing or social behaviors.

“The company used a stealth marketing campaign by paying people to talk about the product in cafes.”

“The legislation was introduced through a stealth tactic, buried deep within a larger, unrelated budget bill to avoid public debate.”

C1 · Advanced Informal

v. to move very quietly and carefully to avoid being noticed.

v. to move or proceed using stealthy maneuvers. Often used intransitively in gaming or tactical contexts.

“In the video game, you have to stealth past the guards to reach the treasure.”

“The player managed to stealth through the entire level without triggering a single alarm or engaging in combat.”

C2 · Proficiency Law Slang · Vulgar

v. to secretly remove a condom during sex without the partner's permission.

v. to engage in the act of removing a prophylactic during sexual intercourse without the partner's knowledge or consent.

“He was arrested after his partner discovered he had decided to stealth her during their encounter.”

“Legal scholars argue that to stealth a partner constitutes a fundamental violation of consent and should be prosecuted as a serious offense.”