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
Example Sentences
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Recent Examples of invertebrate
Avery Hurt, Discover Magazine, 3 Feb. 2023
A year later, the state budgeted $10 million to pull DNA out of historic insect collections, as well as to launch ambitious new field studies to better understand the extent of California’s invertebrate biodiversity.
—Los Angeles Times, 24 Dec. 2022
Lily Templeton, Footwear News, 16 Oct. 2025
Researchers in the Republic of Korea, or South Korea, have discovered two unusual invertebrate species through the first study of its kind in more than 100 years.
—Lauren Liebhaber, Miami Herald, 28 Aug. 2025
See All Example Sentences for invertebrate
Adjective
Jessica Ware is associate curator of invertebrate zoology at the American Museum of Natural History.
—Avery Hurt, Discover Magazine, 3 Feb. 2023
A year later, the state budgeted $10 million to pull DNA out of historic insect collections, as well as to launch ambitious new field studies to better understand the extent of California’s invertebrate biodiversity.
—Los Angeles Times, 24 Dec. 2022
Noun
Initiated in 2019, the partnership between the two centers on the creation of a research unit around the biology of the precious coral, also known as Mediterranean red coral, aims to better understand the marine invertebrate and contribute to its preservation.
—Lily Templeton, Footwear News, 16 Oct. 2025
Researchers in the Republic of Korea, or South Korea, have discovered two unusual invertebrate species through the first study of its kind in more than 100 years.
—Lauren Liebhaber, Miami Herald, 28 Aug. 2025
See All Example Sentences for invertebrate
Recent Examples of Synonyms for invertebrate
Adjective
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Taking new measurements, the researchers saw that as fluid gushed between cells, creating indentations in their cell membranes, bubbles mostly bulged into weaker cells.—
Clare Watson,
Quanta Magazine,
27 Feb. 2026
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Trump suggested in the aftermath of that raid that military action in Cuba might not be necessary because the island’s economy was weak enough — particularly in the absence of oil shipments from Venezuela that stopped after Maduro was taken into custody — to soon collapse on its own.—
Will Weissert,
Los Angeles Times,
27 Feb. 2026
Noun
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Here, Sihang Zhang and Peiyun Cong found specimens of two myllokunmingid species, representing the earliest vertebrates.—
New Atlas,
New Atlas,
16 Feb. 2026
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The findings also suggest that herbivory evolved independently in several different groups of early land vertebrates, not just in the ancestors of modern reptiles.—
Lily Hautau,
CNN Money,
11 Feb. 2026
Adjective
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Infants and children under 5 years old, pregnant women and people with weakened immune symptoms are most at risk for complications from measles.—
Alexandra Simon,
CBS News,
24 Feb. 2026
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The illness can be dangerous or life-threatening, particularly to older adults, those with weakened immune systems and pregnant women.—
Fernando Cervantes Jr,
USA Today,
17 Feb. 2026
Noun
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The herbivore is believed to be 125 million years old and once lived in northeastern China.—
Michelle Del Rey,
USA Today,
19 Feb. 2026
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The study authors hypothesized that this early land animal initially fed on insects but over generations evolved into an herbivore.—
Lily Hautau,
CNN Money,
11 Feb. 2026
Adjective
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The material is a blend of viscose, polyester, and nylon that shoppers call surprisingly soft and stretchy.—
Olivia Young,
Travel + Leisure,
28 Feb. 2026
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Creamy and soft, these shades aren't as stark as bright white and leave your nails looking clean while still feeling contemporary.—
Amanda Le,
InStyle,
27 Feb. 2026
Noun
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Nile monitors are carnivores that actively hunt vertebrate prey.—
Sergio Candido,
Miami Herald,
24 Feb. 2026
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Nile monitors are carnivores that actively hunt vertebrate prey.—
Sergio Candido,
CBS News,
23 Feb. 2026
Adjective
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The nagging wife, the angry daughter and the spineless detective.—
Erik Kain,
Forbes.com,
29 Jan. 2026
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He must be impeached, but with a spineless Congress and a corrupt Supreme Court how this will happen is in grave doubt.—
Sun Sentinel Editorial Board,
Sun Sentinel,
26 Jan. 2026
Cite this Entry
“Invertebrate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invertebrate. Accessed 3 Mar. 2026.
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