INVERTEBRATE Synonyms: 88 Similar and Opposite Words

invertebrate 1 of 2

adjective

(ˌ)in-ˈvər-tə-brət

Definition of invertebrate

as in weak

lacking strength of will or character an invertebrate Congress that blithely went along with the President's ill-conceived plan

Synonyms & Similar Words

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Antonyms & Near Antonyms

invertebrate

2 of 2

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 invertebrate

Adjective

There will be hands-on training to conduct water quality testing and macro-invertebrate sampling. — Arkansas Online, 21 Oct. 2025 Jessica Ware is associate curator of invertebrate zoology at the American Museum of Natural History. — Avery Hurt, Discover Magazine, 3 Feb. 2023

Noun

When Jo arrives on the island, however, Nadia is missing, and the jellyfish appears to be much more than a mere invertebrate. — Tessa Yang, PEOPLE, 2 June 2026 Previous Conservation Station elements including the veterinary treatment room, animal nutrition window and the amphibian, reptile and invertebrate windows again will be available. — Dewayne Bevil, The Orlando Sentinel, 13 May 2026 See All Example Sentences for invertebrate

Recent Examples of Synonyms for invertebrate

Adjective

Even durable bouclé material won’t save a sofa built on a weak foundation.

— Ryan Brennan, Miami Herald, 22 July 2026
Further, the hinge mechanism provides a bit more assistance, and the magnets are a bit weaker, reducing the force needed to open the phone by half.

— Eric Zeman, PC Magazine, 22 July 2026

Definition of weak

Noun

Because of their smaller body sizes than vertebrates, arthropods are often portrayed as prey of vertebrates.

— Jay Kakade July 13, New Atlas, 14 July 2026
Insects and the like Most of the species cats ate were vertebrates – mostly birds, followed by mammals and reptiles.

— Christopher A. Lepczyk, The Conversation, 8 July 2026

Definition of vertebrate

Adjective

The condition occurs due to a slow breakdown of the cells in the aorta, which has likely been going on silently for many years before the weakened area of the aortic wall finally gives away and tears.

— Vanessa Etienne, PEOPLE, 13 July 2026
Serratia marcescens can occasionally cause infections in people with weakened immune systems or those who are hospitalized.

— Jessica Safavimehr, Southern Living, 9 July 2026

Definition of weakened

Noun

Invertebrates make up more than 70% of all terrestrial animal species and are important pollinators, predators and herbivores in virtually every nonmarine ecosystem.

— Christopher A. Lepczyk, The Conversation, 8 July 2026
When growing in the prairie, rattlesnake master’s spiny leaves deter other herbivores as well as some insects.

— Sheryl DeVore, Chicago Tribune, 8 July 2026

Definition of herbivore

Adjective

Countless insects and other invertebrates Also not surprising is that the Okefenokee, being a swamp, is home to thousands of invertebrate species — butterflies, moths, bees, dragonflies, beetles, spiders and other soft-bodied creatures.

— Charles Seabrook, AJC.com, 25 July 2026
Pinch-runner Jesus Rodriguez began the 10th at second base and advanced to third on Arraez’s soft single to left.

— ABC News, ABC News, 25 July 2026

Definition of soft

Adjective

And now the nation will probably never get back to normal because a spineless GOP can never admit that it’s been conned.

— Steven Greenhut, Oc Register, 22 May 2026
Some of Thomas’s critique appeared to be aimed at weak-willed conservatives, including his fellow-Justices, for being, as Thomas perceives it, too spineless to stand up for the ideals enshrined in the Declaration.

— Ruth Marcus, New Yorker, 21 May 2026

Definition of spineless

Browse Nearby Words

invert

invertebrate

invertebrates

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Style

“Invertebrate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invertebrate. Accessed 25 Jul. 2026.

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Synonyms of invertebrate

adjective

noun

Example Sentences

Browse Nearby Words

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