HIGH-OCTANE Synonyms: 30 Similar and Opposite Words

high-octane

adjective

Definition of high-octane

as in high-test

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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 high-octane Many struggle to live with their high-octane styles, but there is an inevitable downside to such an approach. — Conor O'Neill, New York Times, 14 Sep. 2026 The late designer spent more than six decades defining high-octane glamour. — Amanda Le, InStyle, 14 Sep. 2026 The test doesn’t get any easier with Buffalo facing a short week and preparing to host the high-octane Detroit Lions on Thursday night. — ABC News, 14 Sep. 2026 Upfront, edge rusher Josh Sweat anchors the pass rush alongside Andrew Billings, while a young secondary will face immediate pressure against high-octane NFC West offenses. — David Troy Outkick, FOXNews.com, 9 Sep. 2026 See All Example Sentences for high-octane

Recent Examples of Synonyms for high-octane

Adjective

The graduation ceremony and the reception afterward are cute and heartwarming for the grown-ups, bittersweet and mortifying for the kids, who skive off to smoke some of Ed’s high-test weed and have a little Texas Forever moment, toasting their enduring friendships.

— Sophie Brookover, Vulture, 27 Mar. 2026
Unlike many rocket engines used for hypersonic vehicles, the Draper engine runs on high-test hydrogen peroxide and kerosene.

— New Atlas, New Atlas, 25 Feb. 2026

Definition of high-test

Adjective

Excessive or undiluted consumption of ACV, for example, can irritate your gastrointestinal tract, erode tooth enamel, and potentially interact with certain medications, said Walker.

— Sherri Gordon, HEALTH, 1 Sep. 2026
Set Out Bowls Of Vinegar Wiping surfaces with vinegar helps get rid of scents that attract mice, but leaving out a bowl of undiluted vinegar can act as a strong deterrent for longer periods of time.

— Karen Brewer Grossman, Southern Living, 31 Aug. 2026

Definition of undiluted

Adjective

Sellke, Shi, and Wang then showed that after a certain number of shuffles (which depended on how many cards were in the deck), the overlap between the decks’ regions of unmixed cards disappeared at an exponential rate.

— John Pavlus, Quanta Magazine, 17 June 2026
Baking the cake unmixed creates a deliciously gooey cake that is crumbly and buttery on top.

— Melinda Salchert, Southern Living, 3 Oct. 2025

Definition of unmixed

Browse Nearby Words

high noons

high-octane

high-pitched

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

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Synonyms of high-octane

adjective

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