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.
Virgo’s film takes that premise and reimagines it as a twisty psychological allegory, laden with weighty themes. Murtada Elfadl, Variety, 23 Sep. 2025 First launched in 1984 with a $250 annual fee (equivalent to $777 in 2025, based on the average rate of inflation), this distinctive card became a global status symbol through the years, morphing into a sleek, weighty metal card that costs more and more with each new evolution. Katherine Fan, AFAR Media, 18 Sep. 2025 According to the rocker, the latest record features a mix of feel-good anthems, as well as moodier tracks that cover weightier subject matter — and MGK has been up front about wanting to be an open book through his music. Charlotte Phillipp, PEOPLE, 18 Sep. 2025 Much of season one involves ordinary scientists wrestling with weighty themes such as time, destiny, and the meaning of discovery. Caroline Reid, Forbes.com, 18 Sep. 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

Browse Nearby Words

Cite this Entry

“Weighty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/weighty. Accessed 26 Sep. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!