COPIOUS Synonyms: 51 Similar and Opposite Words

Q: How does the adjective 'copious' differ from other similar words?

Some common synonyms of copious are abundant , ample , and plentiful . While all these words mean "more than sufficient without being excessive," copious stresses largeness of supply rather than fullness or richness. // copious examples of bureaucratic waste

Q: How do 'abundant' and 'plentiful' relate to one another, in the sense of 'copious'?

Abundant suggests an even greater or richer supply than does plentiful . // streams abundant with fish

Q: When can 'ample' be used instead of 'copious'?

While in some cases nearly identical to copious , ample implies a generous sufficiency to satisfy a particular requirement. // ample food to last the winter

Q: When is 'plentiful' a more appropriate choice than 'copious'?

The words plentiful and copious are synonyms, but do differ in nuance. Specifically, plentiful implies a great or rich supply. // peaches are plentiful this summer

copious

adjective

ˈkō-pē-əs

Definition of copious

as in lavish

pouring forth in great amounts a copious rush of words just poured out of the two friends who hadn't seen each other in years

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How does the adjective copious differ from other similar words?

Some common synonyms of copious are abundant, ample, and plentiful. While all these words mean "more than sufficient without being excessive," copious stresses largeness of supply rather than fullness or richness.

copious examples of bureaucratic waste

How do abundant and plentiful relate to one another, in the sense of copious?

Abundant suggests an even greater or richer supply than does plentiful.

streams abundant with fish

When can ample be used instead of copious?

While in some cases nearly identical to copious, ample implies a generous sufficiency to satisfy a particular requirement.

ample food to last the winter

When is plentiful a more appropriate choice than copious?

The words plentiful and copious are synonyms, but do differ in nuance. Specifically, plentiful implies a great or rich supply.

peaches are plentiful this summer

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 copious In the stands, meanwhile, some fans have garnered nearly as much as attention as the players for reasons ranging from their love of ranch dressing to their ability to drink copious amounts of beer. — Emma Banks, PEOPLE, 19 July 2026 Quench them with a copious deluge of water and stir to guarantee complete cooling. — Ca Weather Bot, Sacbee.com, 14 July 2026 On Monday, the Hamilton County Prosecuting Attorney’s Office issued a statement on Facebook announcing the arrests, as well as the seizure of copious amounts of drugs over the course of Phish’s three shows at the Ruoff Music Center. — Jon Blistein, Rolling Stone, 14 July 2026 There are many reasons flash floods occur, but one of the most common is copious rainfall from thunderstorms. — Natassia Paloma, USA Today, 14 July 2026 See All Example Sentences for copious

Recent Examples of Synonyms for copious

Adjective

The impact is lavish yet hushed; welcoming yet sharply articulated.

— Genevieve Walker, Architectural Digest, 2 Aug. 2026
Then there’s breakfast, à la carte and included with the room, lavish from croissant sandwiches to crepes.

— Winston Ross, Forbes.com, 31 July 2026

Definition of lavish

Adjective

On the reflecting pool, Pirro pursued the investigation despite what defense lawyers say was abundant evidence from the outset that the damage at the pool was the result of preexisting problems that had nothing to do with Hearn.

— Josh Boak, Chicago Tribune, 5 Aug. 2026
The Premier League’s collective wealth is abundant relative to the rest of the world but the ability to spend big year after year is concentrated in the hands of the few.

— Chris Weatherspoon, New York Times, 5 Aug. 2026

Definition of abundant

Adjective

The Athletic reported in April that some sources close to the squad questioned Skinner’s ability to bring young talent through, stating his preference was to deal with older players already armed with ample senior experience.

— Megan Feringa, New York Times, 4 Aug. 2026
Because the atmosphere will have ample moisture, heavy downpours are also a concern, with localized flooding possible, especially in urban and developed areas.

— Kansas City Star, Kansas City Star, 3 Aug. 2026

Definition of ample

Adjective

But with refining capacity now constrained, even plentiful crude supplies cannot be quickly processed into gasoline and diesel.

— , CNBC, 7 Aug. 2026
Paired with a protein called folliculin, FNIP1 slows down cells’ calorie-burning machinery to conserve extra energy when food is plentiful.

— Jacek Krywko, Scientific American, 5 Aug. 2026

Definition of plentiful

Adjective

There is a marginal risk of excessive rainfall across all of east Central Florida, according to NWS Melbourne.

— Garfield Hylton, The Orlando Sentinel, 3 Aug. 2026
Importantly, the robot maintained stable locomotion throughout testing, showing that the AI controller could effectively harness passive energy stored in the compliant feet without introducing instability or excessive corrective movements.

— Jijo Malayil, Interesting Engineering, 3 Aug. 2026

Definition of excessive

Adjective

Championing Scotland’s bountiful seasonal larder, the restaurant serves both tasting and à la carte menus built around hyper-local ingredients and foraged produce.

— Carinne Geil Botta, Forbes.com, 31 July 2026
The gross margins on the GPUs are far more bountiful than on CPUs.

— Jim Cramer, CNBC, 26 July 2026

Definition of bountiful

Adjective

The joyous if relatively restrained gathering was the culmination of the riotous nationwide celebrations that had broken out on the evening of April 12, when the results of the parliamentary elections came in.

— Gordon F. Sander, The New York Review of Books, 4 July 2026
Guns is an actor and writer, known for her razor-sharp observations and riotous voice.

— Literary Hub, Literary Hub, 1 July 2026

Definition of riotous

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“Copious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/copious. Accessed 9 Aug. 2026.

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