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 But many drivers falsely believe high-octane gas offers a kind of treat for their engines. — David Goldman, CNN Money, 3 July 2026 On its way to an Academy Award for its state-of-the-art visual effects, Independence Day delivered more than just high-octane summer thrills. — Maggie Fremont, Entertainment Weekly, 3 July 2026 Saturday, July 4 Family fun and high-octane races are marking the Fourth of July in Placerville. — Camila Pedrosa july 2, Sacbee.com, 2 July 2026 My high-octane mutt was leaping around the patio table and barking excitedly while my neighbors huddled together over their steaks. — Deborah Mower, The Conversation, 2 July 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

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 16 Jul. 2026.

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Synonyms of high-octane

adjective

Example Sentences

Browse Nearby Words

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