bulletproof

adjective

ˈbu̇-lət-ˌprüf How to pronounce bulletproof (audio)
Definition of bulletproofnext
as in invincible
incapable of being defeated, overcome, or subdued this year the coach's strategy seems bulletproof

Synonyms & Similar Words

Relevance

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
  1. invincible
  2. armored
  3. invulnerable
  4. impregnable
  5. unbeatable
  6. unstoppable
  7. insurmountable
  8. indomitable
Adjective
  • In some Bengali traditions, Vijayadashami rituals include Aparajita Puja, the worship of the goddess in her invincible form, sometimes represented by the butterfly pea plant.
    — Encyclopedia Britannica, Encyclopedia Britannica, 9 Oct. 2026
  • Of course, an extra three-quarters of an inch clearance and some elastic straps do not transform a unibody, front-biased crossover into an invincible rock-crawling monster.
    — New Atlas, New Atlas, 9 Oct. 2026
Definition of invincible
Adjective
  • Advertisement Throughout the clip, security forces push the protesters back; armored vehicles accelerate to drive bodies back.
    — Abdelrahman ElGendy, Time, 6 Oct. 2026
  • Military vehicles like tanks and armored personnel carriers are even easier to spot and attack.
    — Greg Myre, NPR, 5 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
  • From its airy midcentury modern design to the unbeatable views of Chicago’s skyline and Lake Michigan, Le Méridien Essex Chicago fits all the cosmopolitan chic of the Windy City’s downtown into 14 compact stories.
    — Condé Nast, Condé Nast Traveler, 6 Oct. 2026
  • Sony Headphones Prime Day Deals The Sony WH-1000XM5 Noise Canceling Headphones lead the industry in noise cancellation, powered by dual processors and eight microphones for unbeatable focus and call clarity.
    — Juhi Wadia, PC Magazine, 6 Oct. 2026
Definition of unbeatable
Adjective
  • The kid who convinced his parents to name his little brother after former Yankees manager Joe Girardi now an unstoppable slugger?
    — Hannah Keyser, CNN Money, 7 Oct. 2026
  • The once unstoppable athletic titan expects more layoffs in 2027 after already cutting staff twice this year.
    — Matt Calkins OutKick, FOXNews.com, 5 Oct. 2026
Definition of unstoppable
Adjective
  • The Oscars love sprawling biopics, underdogs and triumphant stories in which seemingly insurmountable obstacles are eventually overcome.
    — Clayton Davis, Variety, 8 Oct. 2026
  • Of course, the Dodger bullpen almost handed the game back to them when Ozzie Albies hit a two-run homer off Tanner Scott in the ninth to close what seemed to be an insurmountable gap.
    — Los Angeles Times, Los Angeles Times, 3 Oct. 2026
Definition of insurmountable
Adjective
  • And yet that bright, sweet aroma is front and center in Creed Aventus, the distinctive eau de parfum widely believed to take inspiration from the French emperor’s indomitable spirit.
    — Robb Report, Robb Report, 9 Oct. 2026
  • Part of that similarly indomitable will is that each has subordinated his own earning power to enable his organizations to optimize building around them.
    — Kansas City Star, Kansas City Star, 9 Oct. 2026
Definition of indomitable

Browse Nearby Words

bulletins
bulletproof
bullets
See all Nearby Words

Cite this Entry

“Bulletproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/bulletproof. Accessed 12 Oct. 2026.

Copy Citation
Love words? Need even more definitions?

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

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of nexus

See Definitions and Examples »

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

The Exceptions of '-s' and '-es' Plurals

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

The Words of the Week - Oct. 9

Why do we call it a 'flea market'?
See More

Popular

See More

Do You Need a New Language Peeve?

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
a cup of tea and a golf ball on tee side by side
Quiz: Sounds Like... Choose the word that sounds like it fits the clue...
See All