- secret, clandestine, or surreptitious procedure.
- a furtive departure or entrance.
- an act of stealing; theft.
- the thing stolen; booty.
- (initial capital letter) Military. a U.S. Air Force project involving a range of technologies, with the purpose of developing aircraft that are difficult to detect by sight, sound, radar, and infrared energy.
- surreptitious; secret; not openly acknowledged: a stealth hiring of the competitor's CEO; the stealth issue of the presidential race.
Origin of stealth
- the act or characteristic of moving with extreme care and quietness, esp so as to avoid detectionthe stealth of a cat
- cunning or underhand procedure or dealing
- archaic the act of stealing
- (modifier) informal denoting or referring to technology that aims to reduce the radar, thermal, and acoustic recognizability of aircraft and missiles
Word Origin and History for stealthful
mid-13c., "theft, action or practice of stealing," from Old English *stælþ, which is related to stelen (see steal (v.)), from Proto-Germanic *stælitho (cf. Old Norse stulþr), with Proto-Germanic abstract noun suffix *-itho (see -th (2)). Sense of "secret action" developed c.1300, but the word also retained its etymological sense into 18c. Got a boost as an adjective from stealth fighter, stealth bomber, radar-evading U.S. military aircraft, activated 1983.