INFALLIBLY Synonyms: 36 Similar and Opposite Words

infallibly

adverb

Definition of infallibly

as in perfectly

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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 infallibly Official liberalism had long been almost inextricably identified with a picture of man as perfectible, as endowed with sufficient wisdom and selflessness to endure power and to use it infallibly for the general good. — David Brooks, The Atlantic, 8 July 2026 The 600 Critics Choice voters, who range across North America and abroad, often predict the Oscar winners, but not infallibly. — Anne Thompson, IndieWire, 5 Jan. 2026 With words infallibly falling short, Pritam mingled realism with a fragmentary style of narration that meshes together social encounters, violent episodes, vivid metaphors, disturbing dreams, memories, intimate self-reflections, and introspection on society. — JSTOR Daily, 30 Oct. 2025

Recent Examples of Synonyms for infallibly

Adverb

Rising fuel costs, discontent with the state of schools, declining public services and a housing crisis have created perfectly stormy weather for an autumn of protests in Europe.

— Teresa Medrano, Los Angeles Times, 19 Oct. 2026
This process, which generates perfectly crystalline silicon ingots to be sliced like fragile metallic salamis into thin wafers, is entrusted largely to one firm in Taiwan and two in Japan.

— Gideon Lewis-Kraus, New Yorker, 19 Oct. 2026

Definition of perfectly

Adverb

Since the AeroSlider moves alongside the axles, its aerodynamic parts remain properly positioned without the need for additional adjustments.

— Georgina Jedikovska, Interesting Engineering, 20 Oct. 2026
An agent could be properly authenticated, correctly authorized and operating within its guardrails.

— Shekhar Iyer, Forbes.com, 20 Oct. 2026

Definition of properly

Adverb

Additionally, Marshall has correctly noted that gas prices were higher during former President Joe Biden’s administration, peaking above $5 nationally.

— Dylan Lysen, Kansas City Star, 22 Oct. 2026
An agent could be properly authenticated, correctly authorized and operating within its guardrails.

— Shekhar Iyer, Forbes.com, 20 Oct. 2026

Definition of correctly

Adverb

Jarman pointed out, rightly, that in the 1630s, the walls wouldn’t have been crumbling at all.

— Sarah Shachat, IndieWire, 19 Oct. 2026
John Mayer, Michael Jordan, and Sam Altman are rightly known as pioneering, if not rule-breaking, leaders in their respective fields—who also happen to be three notable collectors of the startup Swiss watchmaker Vanguart.

— Rachel Ingram, Robb Report, 18 Oct. 2026

Definition of rightly

Adverb

This includes getting a deeper understanding of foot populations and designing products to fit appropriately, scanning the consumer and recommending shoes that will fit best.

— Fairchild Studio, Footwear News, 19 Oct. 2026
These ludicrous ideas are dramatized through appropriately silly scenes where action is the default lingua franca.

— Siddhant Adlakha, Variety, 15 Oct. 2026

Definition of appropriately

Adverb

Stepping into the band’s lead guitarist role was Nick Johnston, a forceful presence delivering crisp musical phrases that could be fittingly elegant or snarling.

— Steve Appleford, Los Angeles Times, 12 Oct. 2026
That you would be invited to the in-house training program in 2008 was a matter of course, after your fittingly self-confident application.

— Literary Hub, Literary Hub, 8 Oct. 2026

Definition of fittingly

Adverb

Less well known is the secondary dining area—aptly named the Secret Garden—which, in good weather, offers a wonderful al fresco experience on the terrace.

— Condé Nast, Condé Nast Traveler, 9 Oct. 2026
The house even released a book, aptly titled Zoë, in honor of the pair’s bond.

— Hannah Jackson, Vogue, 9 Oct. 2026

Definition of aptly

Adverb

Colors were suitably accurate and nicely saturated, and the image offered good contrast across the board from dark to bright scenes, along with impressively good shadow detail and a sense of three-dimensionality in dark scenes.

— M. David Stone, PC Magazine, 24 Oct. 2026
The amenities were suitably Hollywood, too, including a home theater, professional-grade gym, wellness room, swimming pool, spa, and separate guesthouse.

— Abby Montanez, Robb Report, 23 Oct. 2026

Definition of suitably

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infallible

infallibly

infamies

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“Infallibly.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infallibly. Accessed 26 Oct. 2026.

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Synonyms of infallibly

adverb

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