GRUELLING Synonyms: 105 Similar and Opposite Words

grueling

adjective

ˈgrü-ə-liŋ

variants or gruelling

Definition of grueling

as in difficult

requiring considerable physical or mental effort running a marathon is grueling

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in challenging

requiring much time, effort, or careful attention cutting diamonds can be grueling work

Synonyms & Similar Words

Antonyms & Near Antonyms

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 grueling After a grueling five-week trial, the Massachusetts jury attempting to determine whether Lindsay Clancy is criminally responsible for killing her three children is deadlocked. — Jennifer Adaeze Okwerekwu, STAT, 1 Sep. 2026 Over the course of a grueling four-hour, 36-minute first-round loss at Arthur Ashe Stadium late Sunday night, 39-year-old Novak Djokovic battled not only a gritty opponent in unseeded Mariano Navone but his own body. — Peter Sblendorio, New York Daily News, 31 Aug. 2026 Facing reporters and what is likely a grueling year-long recovery process, Giants pitcher Carson Whisenhunt projected an optimistic attitude despite staring down the possibility of UCL surgery, commonly known as Tommy John surgery. — Joseph Dycus, Mercury News, 26 Aug. 2026 Experts say this year’s summer heat has been particularly grueling since nighttime temperatures have remained high and coastal areas have been hotter than usual. — Iris Kwok, Los Angeles Times, 25 Aug. 2026 See All Example Sentences for grueling

Recent Examples of Synonyms for grueling

Adjective

Being undefeated after a trio of difficult opening matches can only be seen as a positive, even if Newcastle’s obvious shortcomings require addressing if that run is to be prolonged.

— Chris Waugh, New York Times, 6 Sep. 2026
Engineers need flight data on propulsion, aerodynamics, thermal management, guidance and other subsystems under conditions that are difficult to reproduce on the ground.

— Bojan Stojkovski, Interesting Engineering, 6 Sep. 2026

Definition of difficult

Adjective

Eric Loucks, the director of the Mindfulness Center at Brown, pointed out that a person can have a challenging experience during meditation and still find their overall meditation practice to be beneficial.

— Olga Khazan, The Atlantic, 4 Sep. 2026
For something more hands-on, Atlanta Motorsports Park in Dawsonville has a challenging kart circuit where karts can reach 50 mph or more.

— Chris Teague, AJC.com, 4 Sep. 2026

Definition of challenging

Adjective

Competing in a Grand Tour is one of sport’s toughest endurance tests.

— Chris Marshall-Bell, New York Times, 11 Sep. 2026
Trump used several minutes of his speech to praise Republican Texas Attorney General Ken Paxton, who is in a tough Senate race in America's largest red state.

— Arkansas Online, Arkansas Online, 10 Sep. 2026

Definition of tough

Adjective

That night, somewhere between a racist stranger, a free dessert, my girlfriend publicly shaming a man in a Mediterranean restaurant and our demanding cat, the City of Angels started to feel like home.

— Mayur Chauhan, Los Angeles Times, 4 Sep. 2026
And the longer or more demanding the workout, the more important such fuel becomes.

— Daryl Austin, USA Today, 2 Sep. 2026

Definition of demanding

Adjective

Popularists, such as the data scientist David Shor and the writer Matt Yglesias, have advocated using rigorous polling and analytics to develop a Democratic agenda that appeals to the median voter.

— Jason Zengerle, New Yorker, 10 Sep. 2026
That’s led to more rigorous testing and higher standards, including a set of rules by the American Petroleum Institute that took effect at the start of the decade.

— Adam Ismail, The Drive, 10 Sep. 2026

Definition of rigorous

Adjective

Soldier Field and Wrigley Field will have formidable new competition.

— The Editorial Board, Chicago Tribune, 6 Sep. 2026
Importantly, such research demonstrated the formidable risk associated with self-criticism for postpartum depression and anxiety, as well as for disruptions in mother-child communication, which might exacerbate postpartum psychopathology.

— Torie Bosch, STAT, 5 Sep. 2026

Definition of formidable

Browse Nearby Words

grudgingly

grueling

gruesome

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Style

“Grueling.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/grueling. Accessed 16 Sep. 2026.

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Synonyms of grueling

adjective

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