FLUID Synonyms: 193 Similar and Opposite Words

fluid

adjective

ˈflü-əd

Definition of fluid

as in liquid

capable of moving like a liquid warm the jam until it is fluid, then spread it over the cake

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in adjustable

capable of being readily changed the script is still fluid at this point, so be prepared for last-minute rewrites

Synonyms & Similar Words

Antonyms & Near Antonyms

as in smooth

involving minimal difficulty or effort the dance looked smooth and fluid, though backstage we could see the dancer gasping for breath and sweating from the effort

Synonyms & Similar Words

Antonyms & Near Antonyms

as in volatile

likely to change frequently, suddenly, or unexpectedly his arrival plans are fluid, so expect him anytime

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 fluid To navigate this acceleration, leadership must shift from rigid hierarchies to horizontal agility—partnering across boundaries to follow the fluid flow of value. — Stephanie Kramer, Fortune, 10 Oct. 2026 Mitchell is a good receiving back, has home-run type speed and is fluid. — Sam Jane, Denver Post, 9 Oct. 2026 The column began with Google’s Sundar Pichai, who set down a fluid stroke, embellished with two horizontal lines, two dots and a dash. — Harmeet Kaur, CNN Money, 8 Oct. 2026 Carpal tunnel syndrome is more common in women, and factors such as diabetes, rheumatoid arthritis, wrist injuries, and fluid retention during pregnancy or menopause may increase risk. — Tom Gavin, EverydayHealth.com, 7 Oct. 2026 See All Example Sentences for fluid

Recent Examples of Synonyms for fluid

Adjective

Testing a different reactor design Unlike conventional reactors, which typically use solid fuel, molten salt reactor designs can dissolve nuclear fuel in liquid salt.

— Aamir Khollam, Interesting Engineering, 16 Oct. 2026
Neither liquid nor solid, the soft peat layers formed in bogs and fens set them apart from all other ecosystems.

— Literary Hub, Literary Hub, 16 Oct. 2026

Definition of liquid

Adjective

This accent color continues into the cabin on the dashboard and center console, while the standard four-way power-adjustable sport seats add to the sense of occasion with plaid inserts.

— Bradley Iger, Robb Report, 16 Oct. 2026
Their two top sellers are the Banyan pant, which is a snap pant, and a Move and Groove pant, both of which are adjustable.

— Lisa Lockwood, Footwear News, 15 Oct. 2026

Definition of adjustable

Adjective

Court challenges meant this process wasn't always smooth, but the results speak from themselves.

— Arkansas Online, Arkansas Online, 13 Oct. 2026
If Waldron, who currently serves as Goldman president and chief operating officer, takes over as CEO, Solomon would likely remain as executive chairman for a period of time, an arrangement designed to engineer a smooth handoff.

— Hugh Son,Laya Neelakandan,Leslie Picker,Ritika Shah, CNBC, 13 Oct. 2026

Definition of smooth

Adjective

Together, the tools could help accelerate the development of more resilient electric motor systems while reducing the risks associated with critical material shortages, volatile supply chains and rapidly changing global markets.

— Prabhat Ranjan Mishra, Interesting Engineering, 15 Oct. 2026
Daily crude flows are very volatile, with only 3 million barrels of crude transiting Hormuz on Monday while 6 million barrels passed through the strait on Friday, according to Kpler.

— Spencer Kimball, CNBC, 14 Oct. 2026

Definition of volatile

Adjective

Sepideh Moafi Sepideh Moafi turned to Lebanese designer Georges Hobeika for her attire, sporting a dusty gold gown with a bevy of shimmering embellishments all over the bodice and semi-sheer flowing skirt.

— Julia Teti, Footwear News, 15 Sep. 2026
Layers are everywhere in 2026, but this time the haircut is being imagined as less edgy and a bit softer—more flowing, more subtle.

— Lucy Binder, Glamour, 30 Aug. 2026

Definition of flowing

Adjective

Rather than simply copying that, but with a slab of batteries under the cabin, the Fiat Multiplay explores the idea of a vehicle that’s adaptable, transforming from a three-row people carrier to a pickup.

— Jonathan M. Gitlin, ArsTechnica, 13 Oct. 2026
Its adaptable architecture supports missions including tactical logistics, intelligence, surveillance and reconnaissance, casualty evacuation, communications support and other mission-critical applications.

— Prabhat Ranjan Mishra, Interesting Engineering, 10 Oct. 2026

Definition of adaptable

Adjective

The intensity of their yearning has only increased on their second album, Nature’s Pill—and that’s no easy feat, considering this is a band whose breakout track opens with the narrator prostrating himself before the object of his affection.

— Colin Joyce, Pitchfork, 14 Oct. 2026
Celebrity hairstylist Brian Magallones considers this the perfect balance between a not-too-fussy and not-too-structured chignon, a style that sounds tough to style without a professional team but is actually quite easy to master at-home.

— Kaleigh Werner, Footwear News, 13 Oct. 2026

Definition of easy

Adjective

Jeff Shields, a spokesperson for PJM, said electricity demand is growing faster than new generating capacity can come online, while unpredictable weather is leaving fewer opportunities for critical maintenance and construction.

— Brittany Miller, FOXNews.com, 14 Oct. 2026
Loos, who was thirty-one, was known to express displeasure in hot and angry bursts and could be unpredictable.

— Literary Hub, Literary Hub, 14 Oct. 2026

Definition of unpredictable

Browse Nearby Words

fluffy

fluid

fluke

See all Nearby Words

Cite this Entry

Style

“Fluid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fluid. Accessed 20 Oct. 2026.

Copy Citation

Synonyms of fluid

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on fluid

More from Merriam-Webster

Word of the Day

compunction

Popular in Grammar & Usage

'Affect' vs. 'Effect'

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Popular in Wordplay

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

Did 'orange' the fruit or the color come first?

Popular

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

Games & Quizzes