ALL-OUT Synonyms: 126 Similar and Opposite Words

all-out 1 of 2

adjective

ˈȯl-ˈau̇t

Definition of all-out

as in sheer

having no exceptions or restrictions Grandpa got the all-out support of the family when he decided to remarry at age 72

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in thorough

trying all possibilities an all-out effort to break open the door

Synonyms & Similar Words

Antonyms & Near Antonyms

all out

2 of 2

adverb

as in full steam ahead

with all power or resources being used went all out for her New Year's Eve party—she even had fireworks!

Synonyms & Similar Words

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 all-out

Adjective

Tensions are flaring over the critical Strait of Hormuz, pushing the two sides back towards all-out war. — Billy Stockwell, CNN Money, 15 July 2026 Meanwhile, remember the all-out pressure looks Graham likes to create? — Mike Defabo, New York Times, 15 July 2026

Adverb

How the brain works it all out As the server prepares to strike the tennis ball, the receiver is already gathering information. — Michelle Spear, Scientific American, 11 July 2026 In the last five years, their first-round selections were all out of college with the last three being hitters. — Lamond Pope, Chicago Tribune, 10 July 2026 See All Example Sentences for all-out

Recent Examples of Synonyms for all-out

Adjective

The aspiring model was blooming in florals in the sculptural look, which featured a strapless bubble top paired with a sheer floor-length skirt, both of which were embroidered with purple and blue floral designs.

— Lara Walsh, InStyle, 18 July 2026
Yet, in the last two years, this sentiment of sheer doom has slowly and steadily begun to give way to a tentative yet very much present hope.

— Rafa Sales Ross, Variety, 18 July 2026

Definition of sheer

Adjective

Hundreds of scientific societies and other organizations had requested an extension on the comment period, given the scope of the regulation to be able to respond in the most thorough way possible.

— Anil Oza, STAT, 15 July 2026
Whether your model is the FreeSip, Flip, or Twist, a thorough clean requires separating each component.

— Nafeesah Allen, Better Homes & Gardens, 15 July 2026

Definition of thorough

Adverb

Because of that commonality and because produce has been behind some past cyclospora outbreaks, Michigan officials advised consumers to buy whole heads of lettuce, discard the outer layers and thoroughly wash what is left.

— Mike Stobbe, Fortune, 15 July 2026
Health authorities have also warned against using prewashed, bagged lettuce in particular and have advised consumers to instead buy whole heads of lettuce and discard the outer two or three layers before washing what’s left thoroughly.

— Adam Kovac, Scientific American, 15 July 2026

Definition of thoroughly

Adjective

The Springboks struggled to reflect their utter domination on the scoreboard and ought to have doubled their seven actual tries by seven different scorers.

— ABC News, ABC News, 18 July 2026
The problem is Will Ferrell as Lonnie Hawkins, an utter miscalculation of characterization and performance chiefly responsible for turning what could be middling comedy into an unbearable slog.

— Kathryn VanArendonk, Vulture, 16 July 2026

Definition of utter

Adverb

But just like all other houses in Collins First Nation, her home was completely destroyed by the fires.

— Alessandra Freitas, CNN Money, 18 July 2026
Student-athletes may have to adjust to a new coach, a new culture, new expectations and sometimes a completely different philosophy.

— Timothy Baghurst, The Orlando Sentinel, 17 July 2026

Definition of completely

Adjective

Crocker, who survived the 1983 bombing of the US embassy in Beirut, Lebanon, said that at this point an unconditional opening of the Strait of Hormuz to all maritime traffic should be the objective.

— Monica Haider, CNN Money, 18 July 2026
Ramp, the corporate card and expense management company backed by Iconiq and valued at $44 billion, is now Senra’s largest advertiser and, by CEO Glyman’s own description, an unconditional backer.

— Lily Mae Lazarus, Fortune, 5 July 2026

Definition of unconditional

Adjective

Yoshinobu Yamamoto’s third career complete game was the highlight of the win in Game 1 of a doubleheader on Sunday.

— Assistant Sports Editor, Los Angeles Times, 20 July 2026
The robots perform a complete workflow, including collecting materials, placing components with precision, interacting with inspection equipment and returning finished products.

— Jijo Malayil, Interesting Engineering, 20 July 2026

Definition of complete

Browse Nearby Words

allotting

all-out

all out

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Style

“All-out.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/all-out. Accessed 21 Jul. 2026.

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Synonyms of all-out

adjective

adverb

Example Sentences

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