MAINTAINABILITY Synonyms: 137 Similar and Opposite Words

Q: How does the verb 'maintain' differ from other similar words?

Some common synonyms of maintain are assert , defend , justify , and vindicate . While all these words mean "to uphold as true, right, just, or reasonable," maintain stresses firmness of conviction. // steadfastly maintained his innocence

Q: When would 'assert' be a good substitute for 'maintain'?

Although the words assert and maintain have much in common, assert suggests determination to make others accept one's claim. // asserted her rights

Q: When could 'defend' be used to replace 'maintain'?

In some situations, the words defend and maintain are roughly equivalent. However, defend implies maintaining in the face of attack or criticism. // defended his voting record

Q: When is it sensible to use 'justify' instead of 'maintain'?

The words justify and maintain can be used in similar contexts, but justify implies showing to be true, just, or valid by appeal to a standard or to precedent. // the action was used to justify military intervention

Q: In what contexts can 'vindicate' take the place of 'maintain'?

The meanings of vindicate and maintain largely overlap; however, vindicate implies successfully defending. // his success vindicated our faith in him

maintain

verb

mān-ˈtān

Definition of maintain next

as in to preserve

to keep in good condition he repairs and maintains antique cars as a hobby

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Antonyms & Near Antonyms

as in to defend

to continue to declare to be true or proper despite opposition or objections part of debating is learning to maintain your position in the face of harsh challenges

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as in to keep

to pay the living expenses of we simply cannot afford to maintain a horse

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as in to argue

to state (something) as a reason in support of or against something under consideration she continued to maintain that a sewing machine would end up paying for itself since she could make her own clothes

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as in to insist

to state as a fact usually forcefully he maintains that there is indeed hard evidence for extraterrestrial visitors

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Synonym Chooser

How does the verb maintain differ from other similar words?

Some common synonyms of maintain are assert, defend, justify, and vindicate. While all these words mean "to uphold as true, right, just, or reasonable," maintain stresses firmness of conviction.

steadfastly maintained his innocence

When would assert be a good substitute for maintain?

Although the words assert and maintain have much in common, assert suggests determination to make others accept one's claim.

asserted her rights

When could defend be used to replace maintain?

In some situations, the words defend and maintain are roughly equivalent. However, defend implies maintaining in the face of attack or criticism.

defended his voting record

When is it sensible to use justify instead of maintain?

The words justify and maintain can be used in similar contexts, but justify implies showing to be true, just, or valid by appeal to a standard or to precedent.

the action was used to justify military intervention

In what contexts can vindicate take the place of maintain?

The meanings of vindicate and maintain largely overlap; however, vindicate implies successfully defending.

his success vindicated our faith in him

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 maintain The debate comes as several fire stations are closed for renovations and some fire trucks remain out of service, while city leaders insist coverage is still being maintained. —

Daniel Wilkerson, CBS News, 14 Apr. 2026 The act requires that the president maintain records of his administration and, at the end of his term, turn them over to the National Archives. —

Gary M. Stern, Washington Post, 14 Apr. 2026 The challenge for Revolut is maintaining those advantages in the face of new pressures, requirements, and operating costs. —

Encyclopedia Britannica, 14 Apr. 2026 Ultraprocessed foods are often high in calories and low in vitamins, minerals and nutrients needed to maintain muscle health, Link said. —

Kaitlin Sullivan, NBC news, 14 Apr. 2026 See All Example Sentences for maintain

Recent Examples of Synonyms for maintain

Verb

The foundation has contributed to groups that aim to preserve Sacramento history, trees and help maintain McKinley Park, though tax filings since 2012 do not show direct contributions to Citizens for Positive Growth & Preservation.

— Stephen Hobbs, Sacbee.com, 9 Apr. 2026
If justice means anything any more, a federal judge will easily swipe through Hegseth’s nebulous legal fantasies, and preserve the possibility that someday, the Endangered Species Act might actually help save endangered species in the Gulf.

— Orlando Sentinel Editorial Board, The Orlando Sentinel, 8 Apr. 2026