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

The project will add domestic capacity for assembling, integrating, and testing Wärtsilä engines used for ship propulsion and auxiliary power.

— Neetika Walter, Interesting Engineering, 12 Aug. 2026
The center is run by the university’s auxiliary organizations Associated Students and The University Union along with the California Division of Boating and Waterways and the California Department of Parks and Recreation.

— Tarini Mehta, Sacbee.com, 12 Aug. 2026

Definition of auxiliary

Adjective

Wald said part of her review will focus on security at the establishment and whether additional measures could have prevented the violence.

— Ivan Taylor, CBS News, 14 Aug. 2026
New York state requires riders of all forms of e-bikes to be at least 16, and New York City imposes additional restrictions, including a 15 mph (24 kph) speed limit.

— ABC News, ABC News, 14 Aug. 2026

Definition of additional

Adjective

Colorado also legalized accessory dwelling units statewide in 2024, letting homeowners build small backyard or garage apartments without needing a special hearing or approval.

— Solomon Greene, The Conversation, 14 Aug. 2026
Los Angeles County built more accessory dwelling units last year than ever before, as backyard homes and converted garages continued their rapid rise from a niche form of housing to a major source of new construction.

— Teresa Liu, Daily News, 11 Aug. 2026

Definition of accessory

Adjective

In 2024, Purja became the fastest person to summit all 14 of the peaks without supplementary oxygen.

— Lex Harvey, CNN Money, 31 July 2026
Coverage is provided by Employees’ Health Insurance and National Health Insurance schemes; private insurance only plays a supplementary role.

— Runchana Pongsaparn, Fortune, 31 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 17 Aug. 2026.

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Synonyms of accessorial

adjective

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