weightier; weightiest
1
a
: of much importance or consequence : momentous
a weighty problem
b
: solemn
2
a
: weighing a considerable amount
b
: heavy in proportion to its bulk
weighty metal
3
: powerful, telling
weighty arguments
weightily adverb
weightiness noun
Choose the Right Synonym for weighty

heavy, weighty, ponderous, cumbrous, cumbersome mean having great weight.

heavy implies that something has greater density or thickness than the average of its kind or class.

a heavy child for his age

weighty suggests having actual and not just relative weight.

a load of weighty boxes

ponderous implies having great weight because of size and massiveness with resulting great inertia.

ponderous elephants in a circus parade

cumbrous and cumbersome imply heaviness and bulkiness that make for difficulty in grasping, moving, carrying, or manipulating.

wrestled with the cumbrous furniture
early cameras were cumbersome and inconvenient

Examples of weighty in a Sentence

She grabbed a weighty book off the shelf. The film deals with some weighty issues. Those are weighty arguments in your favor. He was a weighty figure in the art world.
Recent Examples on the Web
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.
In the past, Murphy’s fantastical Monster series has engendered real-world, weighty conversations. Mathew Rodriguez, Them., 7 Oct. 2025 For all that Donnarumma and Haaland can provide City with a weighty presence in both boxes, the continuing fitness concerns over Rodri could yet be City’s undoing this season. Jordan Campbell, New York Times, 6 Oct. 2025 Yet the entire spectacle felt inadequate to the weighty sprawl of Chabon’s novel, which celebrates the exterior glamour of pop culture while observing its deceptions. Alex Ross, New Yorker, 6 Oct. 2025 In the thicker, weightier territory is Buffy’s Cloud comforter, which has a puffy fill that’s sourced entirely from recycled PET bottles. Blake Bakkila, Architectural Digest, 6 Oct. 2025 See All Example Sentences for weighty

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of weighty was in the 15th century

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Cite this Entry

“Weighty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/weighty. Accessed 8 Oct. 2025.

Kids Definition

weighty

adjective
weightier; weightiest
1
: having much weight : heavy
2
a
: of much importance : serious
weighty problems
b
: showing seriousness : solemn
a weighty expression on her face
3
: having the power to influence or persuade
weighty arguments
weightily adverb
weightiness noun

More from Merriam-Webster on weighty

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