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

Synonyms & Similar Words

Relevance

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

Synonyms & Similar Words

Antonyms & Near Antonyms

as in to keep

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

Synonyms & Similar Words

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

Synonyms & Similar Words

as in to insist

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

Synonyms & Similar Words

Antonyms & Near Antonyms

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 Although different varieties range in height from 6 to 24 inches tall, most ageratum, especially hybrids, maintain a tidy, mounded shape that doesn’t require deadheading to keep it neat. —

Arricca Elin Sansone, Southern Living, 12 May 2026 Huang has visited China multiple times in the last 18 months, including a high-profile trip last summer, underscoring Nvidia’s efforts to maintain ties in a market that once accounted for at least a fifth of its data center revenue. —

Evelyn Cheng, CNBC, 12 May 2026 Officials have maintained that the public health system is working exactly as intended. —

Rebecca Cohen, NBC news, 12 May 2026 The conversation was not about what AI can achieve in isolation, but about what can be consistently deployed, maintained, and scaled across physical environments. —

Matt Emma, USA Today, 12 May 2026 See All Example Sentences for maintain

Recent Examples of Synonyms for maintain

Verb

To help preserve the surrounding landscape, the hotel has also rented out a part of the surrounding ranch for the purpose of relocating livestock and restoring wildlife.

— Condé Nast, Condé Nast Traveler, 14 May 2026
Gary Stern, who served as general counsel of the National Archives for twenty-six years, collaborated with five Administrations—from Bill Clinton’s to Joe Biden’s—on preserving and releasing Presidential records.

— Ruth Marcus, New Yorker, 14 May 2026