BULLETPROOF Synonyms: 44 Similar and Opposite Words

bulletproof

adjective

ˈbu̇-lət-ˌprüf

Definition of bulletproof

as in invincible

incapable of being defeated, overcome, or subdued this year the coach's strategy seems bulletproof

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

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.

Recent Examples of bulletproof Besides abstaining from booze, scientists also don’t have a bulletproof way to prevent hangovers. — Lauren J. Young, Scientific American, 17 Mar. 2026 No offshore trust or jurisdiction is completely bulletproof. — Adam Fayed, Forbes.com, 12 Mar. 2026 Warsh's theory of inflation is designed to make an essentially bulletproof case for cuts in this economy, unless something changes drastically. — Matt Peterson, CNBC, 5 Mar. 2026 While the administration could theoretically attempt to use alternative trade maneuvers to replicate the tariffs, there is no guarantee such a transition would be seamless or legally bulletproof. — Tristan Bove, Fortune, 20 Feb. 2026 See All Example Sentences for bulletproof

Recent Examples of Synonyms for bulletproof

Adjective

Hearing Ryan talk about particularly the metaphor for AIDS and what AIDS meant to him, and that AIDS was quite literally a thing killing beautiful young people in the ‘80s; people who felt untouchable and invincible.

— Jackie Strause, HollywoodReporter, 10 Sep. 2026
Cameron keeps upping the ante, until one becomes convinced the T-1000 is well-nigh invincible.

— ArsTechnica, ArsTechnica, 28 Aug. 2026

Definition of invincible

Adjective

Operation Vivaldi has been largely defined by Ukraine’s innovative use of technology, especially aerial and ground drones and armored personal carriers.

— Ivana Kottasová, CNN Money, 2 Oct. 2026
If civilian use of wireless technologies is exploding, military applications are also rising, and everything from drones to armored vehicles is now part of the larger set of attack units.

— Ameya Paleja, Interesting Engineering, 1 Oct. 2026

Definition of armored

Adjective

Why does Gleb discount the power of those words and feel himself invulnerable?

— Deborah Treisman, New Yorker, 27 Sep. 2026
Google also doesn’t claim that SynthID is invulnerable—the original paper on the technology notes that the watermark is not intended to withstand adversarial attacks.

— ArsTechnica, ArsTechnica, 29 July 2026

Definition of invulnerable

Adjective

Dropped catches from Steve Smith, Green and Travis Head ensured yesterday's brief rally in the field fizzled out and allowed Bangladesh to bat itself into an almost impregnable position.

— ABC News, ABC News, 14 Aug. 2026
The shell of a good- sized adult abalone is more or less impregnable to most of the kelp forest’s predators, too strong and too thick for penetration.

— Literary Hub, Literary Hub, 29 July 2026

Definition of impregnable

Adjective

The Anker Soundcore 2 sets the gold standard for budget portable audio, combining solid stereo clarity with an unbeatable 24-hour battery life.

— Juhi Wadia, PC Magazine, 29 Sep. 2026
The property combines centuries of history with chic interiors, excellent service, and an unbeatable location, mere steps away from Zurich’s central hub and iconic shops.

— Condé Nast, Condé Nast Traveler, 25 Sep. 2026

Definition of unbeatable

Adjective

To say that senior running back Jayden Schlosser is almost unstoppable for Oak Lawn would be an understatement.

— Patrick Z. McGavin, Chicago Tribune, 26 Sep. 2026
That was one of many factors that contributed to UM mustering just 26 yards on its final six possessions after the offense was again virtually unstoppable in the first half.

— Barry Jackson, Miami Herald, 19 Sep. 2026

Definition of unstoppable

Adjective

But complex, long-term construction projects can change drastically, or face insurmountable roadblocks, over their development cycles.

— Kevin Breuninger, CNBC, 28 Sep. 2026
Austria made the Final 8 after Jurji Rodionov beat Belgium’s Zizou Bergs 7-6, 6-3 to build an insurmountable 3-1 advantage.

— ABC News, ABC News, 19 Sep. 2026

Definition of insurmountable

Adjective

In Martinez’s versions, Mirabai is indomitable, sexy, exceedingly earnest, sometimes funny, always speaking at the border of body and spirit.

— Craig Morgan Teicher, Literary Hub, 1 Oct. 2026
The minute-long trailer for the film documenting late heavy metal icon Ozzy Osbourne‘s final show is packed with emotion, tension, tears and, of course, the indomitable spirit of the Blizzard of Ozz himself.

— Gil Kaufman, Billboard, 24 Sep. 2026

Definition of indomitable

Browse Nearby Words

bulletins

bulletproof

bullets

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“Bulletproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/bulletproof. Accessed 5 Oct. 2026.

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Synonyms of bulletproof

adjective

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