ASCERTAIN Synonyms: 73 Similar and Opposite Words

Q: How does the verb 'ascertain' contrast with its synonyms?

Some common synonyms of ascertain are determine , discover , learn , and unearth . While all these words mean "to find out what one did not previously know," ascertain implies effort to find the facts or the truth proceeding from awareness of ignorance or uncertainty. // attempts to ascertain the population of the region

Q: When is 'determine' a more appropriate choice than 'ascertain'?

The meanings of determine and ascertain largely overlap; however, determine emphasizes the intent to establish the facts definitely or precisely. // unable to determine the origin of the word

Q: When would 'discover' be a good substitute for 'ascertain'?

While in some cases nearly identical to ascertain , discover may apply to something requiring exploration or investigation or to a chance encounter. // discovered the source of the river

Q: In what contexts can 'learn' take the place of 'ascertain'?

The words learn and ascertain can be used in similar contexts, but learn may imply acquiring knowledge with little effort or conscious intention (as by simply being told) or it may imply study and practice. // I learned her name only today // learning Greek

Q: When can 'unearth' be used instead of 'ascertain'?

The words unearth and ascertain are synonyms, but do differ in nuance. Specifically, unearth implies bringing to light something forgotten or hidden. // unearth old records

ascertain

verb

ˌa-sər-ˈtān

Definition of ascertain

as in to discover

to come to an awareness of was immediately able to ascertain that the girl was uncomfortable talking about her life at home

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in to find

to come upon after searching, study, or effort ascertained that their old colonial-era house had once functioned as a tavern

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How does the verb ascertain contrast with its synonyms?

Some common synonyms of ascertain are determine, discover, learn, and unearth. While all these words mean "to find out what one did not previously know," ascertain implies effort to find the facts or the truth proceeding from awareness of ignorance or uncertainty.

attempts to ascertain the population of the region

When is determine a more appropriate choice than ascertain?

The meanings of determine and ascertain largely overlap; however, determine emphasizes the intent to establish the facts definitely or precisely.

unable to determine the origin of the word

When would discover be a good substitute for ascertain?

While in some cases nearly identical to ascertain, discover may apply to something requiring exploration or investigation or to a chance encounter.

discovered the source of the river

In what contexts can learn take the place of ascertain?

The words learn and ascertain can be used in similar contexts, but learn may imply acquiring knowledge with little effort or conscious intention (as by simply being told) or it may imply study and practice.

I learned her name only today

learning Greek

When can unearth be used instead of ascertain?

The words unearth and ascertain are synonyms, but do differ in nuance. Specifically, unearth implies bringing to light something forgotten or hidden.

unearth old records

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 ascertain The cause of the avalanche is still unknown, while the Nevada County Sheriff’s Office launched an investigation in the aftermath to ascertain whether criminal negligence played a role. — Adam England, PEOPLE, 7 Aug. 2026 Whereas these institutions all fall within the executive branch, the Smithsonian’s status is harder to ascertain. — Kelsey Ables, The Atlantic, 16 July 2026 Deierlein says that these measures are needed in the short term—at least until the cause of the damage can be ascertained. — Adam Kovac, Scientific American, 7 July 2026 Who had what — or more specifically, half of what — must be ascertained before figuring in tax and tip. — Inga, San Diego Union-Tribune, 15 June 2026 See All Example Sentences for ascertain

Recent Examples of Synonyms for ascertain

Verb

Expect to discover many novel flavors of Brazil—butiá, cajú, cumaru—worked into the menu in unique ways.

— Condé Nast, Condé Nast Traveler, 28 Aug. 2026
Detectives believe 44-year-old Lacurtis Knight, from Tamarac, was hit Sunday by the car somewhere else, and then moved by someone to where his body was discovered, according to the Broward Sheriff’s Office.

— David Goodhue August 28, Miami Herald, 28 Aug. 2026

Definition of discover

Verb

Much of that is because of Bowers, arguably the most talented tight end league-wide, but also because Mayer has found success in Kubiak’s heavy sets, and Thomas continues to provide value as a blocker.

— Sam Warren, New York Times, 31 Aug. 2026
Red walls, heavy draperies with swags and fringe, and jacquard fabrics with gold accents could be found in many homes.

— Kristina McGuirk, Better Homes & Gardens, 30 Aug. 2026

Definition of find

Verb

Some people didn't realize a data center was being built in their community until construction began.

— Dana Taylor, USA Today, 3 Sep. 2026
George Lucas, for his part, has suggested that bringing the Lucas Museum to fruition—a project beset by delays and controversy that has taken nearly a decade to realize—was a herculean effort.

— Alex Greenberger, ARTnews.com, 3 Sep. 2026

Definition of realize

Verb

Instead, local communities have learned how the law enforcement agencies themselves have been misusing the technology to, in some cases, stalk and harass their citizens.

— Irene Wright, USA Today, 4 Sep. 2026
Palace’s intention was to correct the mistakes made in January and learn from last season by establishing a squad capable of competing in the Europa League without impacting their Premier League form.

— Matt Woosnam, New York Times, 3 Sep. 2026

Definition of learn

Verb

Barclays projects that palm oil, coconut oil, and rubber could rise by 30% to 40% over the next 18 months, coffee could see an additional 20% to 30% surge, and rice could increase by a further 10% to 20%.

— , CNBC, 3 Sep. 2026
Authorities initially said Saylor’s mother reported that her child had wandered off from a rental home in Hagley Estates in Pawleys Island and was last seen wearing her swimsuit.

— Marlene Lenthang, NBC news, 3 Sep. 2026

Definition of see

Verb

He was located in Indiana, where he is being held pending extradiction, the release said.

— Elgin Courier-News, Chicago Tribune, 1 Sep. 2026
According to police, crews with the Westport Police Department located the vessel, a white 1998 Seamaster, and found that it was submerged.

— Justin Muszynski, Hartford Courant, 31 Aug. 2026

Definition of locate

Verb

Along with performances from Chappell Roan, Doechii and more, the festival provided a space where attendees could connect directly with the festival’s nonprofit partners and hear more about the issues and communities at the center of their work.

— Desiree Anello, PEOPLE, 2 Sep. 2026
Twice that day, Issa hears about earnest stuff Anton said to win voters over to Paul Baker’s side.

— Ben Rosenstock, Vulture, 2 Sep. 2026

Definition of hear

Verb

Graf also reiterated that his ruling was not a definitive finding of guilt, which will have to be determined by a jury during a future trial.

— Jack Birle, The Washington Examiner, 2 Sep. 2026
In a July 29 order, the court determined Millennia failed to make those fixes.

— Kendrick Calfee, Kansas City Star, 2 Sep. 2026

Definition of determine

Browse Nearby Words

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ascertain

ascertained

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Style

“Ascertain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ascertain. Accessed 5 Sep. 2026.

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Synonyms of ascertain

verb

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