ACCESSORIAL Synonyms: 49 Similar and Opposite Words

accessorial

adjective

ˌak-sə-ˈsȯr-ē-əl

Definition of accessorial

as in auxiliary

available to supply something extra when needed an accessorial service, such as packing, will add substantially to the moving company's basic fee

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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 accessorial If accessorial or conspiracy charges plausibly can be lodged against those people, they should be prosecuted to the full extent of the law. — Andrew Clark, Indianapolis Star, 25 Jan. 2018

Recent Examples of Synonyms for accessorial

Adjective

Now Stockman adds an optional auxiliary tent that zips into a second 180-degree awning on the righthand side.

— New Atlas, New Atlas, 17 July 2026
Rush is also bucking tradition by employing an auxiliary musician, Loren Gold, on keyboards and backing vocals.

— Chicago Tribune, Chicago Tribune, 9 July 2026

Definition of auxiliary

Adjective

Of the 64 homes, 52 will be single-family residences for sale and 12 will be accessory dwelling units.

— George Avalos, Mercury News, 2 July 2026
Stellantis runs Mopar as a full business — more than 1,000 accessory parts, dozens of partners, Jeep Performance Parts, and a growing push to install at the factory.

— Sarwant Singh, Forbes.com, 2 July 2026

Definition of accessory

Adjective

The supplementary motor area helps organise their sequence, and the primary motor cortex sends commands to the muscles of the trunk, shoulder, arm and wrist.

— Michelle Spear, Scientific American, 11 July 2026
With two satellites at supplementary inclinations, the Newtonian perturbations are equal and opposite in the two orbital planes and cancel each other out.

— Jacek Krywko, ArsTechnica, 10 July 2026

Definition of supplementary

Browse Nearby Words

accessions

accessorial

accessories

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“Accessorial.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/accessorial. Accessed 24 Jul. 2026.

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Synonyms of accessorial

adjective

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