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 Octopuses rank among the smartest invertebrate animals. — Ryan Brennan, Miami Herald, 24 Apr. 2026

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 Advertisement For an invertebrate, Marcellus is quite the busybody. — Stephanie Zacharek, Time, 8 May 2026 See All Example Sentences for invertebrate

Recent Examples of Synonyms for invertebrate

Adjective

Following a year of historically weak hiring in 2025, hiring rebounded this spring.

— Rachel Barber, USA Today, 2 July 2026
In a weak free-agency class, centers Robert Williams III (Portland) and Mark Williams (Phoenix) are already off the market, each reportedly agreeing to return to their current teams.

— Broderick Turner, Los Angeles Times, 1 July 2026

Definition of weak

Noun

They are thought to be one of the first vertebrates that made a partial transition from an aquatic to a terrestrial lifestyle.

— Jacek Krywko, ArsTechnica, 23 June 2026
Even more frightening, the percentage exceeded 50% in many groups, including insects, terrestrial vertebrates, and marine species.

— Maria Mocerino, Interesting Engineering, 21 June 2026

Definition of vertebrate

Adjective

The bacterium can also lead to hemolytic uremic syndrome (HUS), a serious complication that is more common in young children, older adults and people with weakened immune systems, according to the release.

— Chiara Kim, PEOPLE, 6 July 2026
While anyone can get sick, young children, older adults, pregnant women and people with weakened immune systems are more likely to become seriously ill.

— Tiffani Jackson, Fort Worth Star-Telegram, 3 July 2026

Definition of weakened

Noun

Moles often get blamed for vole damage, but moles are insectivores that make tunnels and mounds to follow insects, while voles are herbivores that eat anything from edibles to ornamental plants.

— Arricca Elin SanSone, Southern Living, 24 June 2026
Stay at least 25 yards, or about two school buses, away from herbivores like moose, elk, deer, and bison.

— Katie Jackson, Travel + Leisure, 8 June 2026

Definition of herbivore

Adjective

Play soft music to drown out fireworks blasts and give your pet something to do, like putting treats inside an interactive toy, to keep them calm and happy.

— Sandra McDonald, Los Angeles Times, 3 July 2026
This relaxed pick is incredibly soft, really cute, and surprisingly easy to style.

— Annie Blackman, InStyle, 3 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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“Invertebrate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invertebrate. Accessed 8 Jul. 2026.

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Synonyms of invertebrate

adjective

noun

Example Sentences

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