MAINTAIN 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 Athletic maintains full editorial independence in all our coverage. —

Larry Holder, New York Times, 2 June 2026 Herrema has also maintained a solo career in the interim, appearing on the Avalanches’ 2016 album Wildflower and curating a soundtrack featuring MGMT, Kurt Vile, Hot Chip, and more for a 2015 art installation. —

Hattie Lindert, Pitchfork, 2 June 2026 According to the International Energy Agency’s Net Zero Emissions scenario, global bioenergy generation is expected to expand significantly by 2030 as countries seek additional tools to reduce emissions while maintaining grid reliability. —

Kaif Shaikh, Interesting Engineering, 2 June 2026 Many food banks and pantries rely on volunteer help and maintain limited hours. —

Keith M. Phaneuf, Hartford Courant, 2 June 2026 See All Example Sentences for maintain

Recent Examples of Synonyms for maintain

Verb

Local organizations aim to preserve the lake’s pristine condition through monitoring, boat-washing stations, and other initiatives that minimize the impact of waste and control the spread of invasive species.

— Condé Nast, Condé Nast Traveler, 3 June 2026
Its natural indigo project in Turkey reflects its commitment to reducing chemical impact while preserving the authenticity and depth of traditional denim aesthetics.

— Angela Velasquez, Footwear News, 3 June 2026