stealthier; stealthiest
1
: slow, deliberate, and secret in action or character
2
a
: intended to escape observation : furtive
b
: designed to produce a very weak radar return
a stealthy airplane
stealthily adverb
stealthiness noun
Choose the Right Synonym for stealthy

secret, covert, stealthy, furtive, clandestine, surreptitious, underhanded mean done without attracting observation.

secret implies concealment on any grounds for any motive.

met at a secret location

covert stresses the fact of not being open or declared.

covert intelligence operations

stealthy suggests taking pains to avoid being seen or heard especially in some misdoing.

the stealthy step of a burglar

furtive implies a sly or cautious stealthiness.

lovers exchanging furtive glances

clandestine implies secrecy usually for an evil, illicit, or unauthorized purpose and often emphasizes the fear of being discovered.

a clandestine meeting of conspirators

surreptitious applies to action or behavior done secretly often with skillful avoidance of detection and in violation of custom, law, or authority.

the surreptitious stockpiling of weapons

underhanded stresses fraud or deception.

an underhanded trick

Examples of stealthy in a Sentence

the stealthy movements of the crocodile cats are among the stealthiest of stalkers
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Though the area looks like a deep-sea Barbie wonderland to human eyes, these creatures are actually clad in stealthy camouflage. Ashley Balzer Vigil, Scientific American, 22 Aug. 2025 This stealthy switch to short-term debt puts a ceiling on long-term yields. Brett Owens, Forbes.com, 21 Aug. 2025 Dog owner Joseph Stuart, from South Jersey, shared the moment his dachshund, Sammy, pulled off a stealthy snack heist—at the expense of the dog owner's 2-year-old son, Carter. Alice Gibbs, MSNBC Newsweek, 18 Aug. 2025 Bull Guard Crossbody Leather Phone Purse This upscale leather crossbody will add a vibrant pop of color to your travel wardrobe while offering stealthy anti-theft features. Rosie Marder, Travel + Leisure, 17 Aug. 2025 See All Example Sentences for stealthy

Word History

First Known Use

1565, in the meaning defined at sense 1

Time Traveler
The first known use of stealthy was in 1565

Browse Nearby Words

Cite this Entry

“Stealthy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stealthy. Accessed 28 Aug. 2025.

Kids Definition

stealthy

adjective
stealthier; stealthiest
1
: slow, deliberate, and secret in action or character
2
: intended to escape observation : furtive
stealthily adverb

More from Merriam-Webster on stealthy

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!