weighty
Americanadjective
-
having considerable weight; heavy; ponderous.
a weighty bundle.
- Antonyms:
- light
-
burdensome or troublesome.
the weightier cares of sovereignty.
-
important or momentous.
weighty negotiations.
- Synonyms:
- consequential, grave, serious, significant
- Antonyms:
- unimportant, light
-
having or exerting influence, power, etc.; influential.
a weighty merchant of Boston.
adjective
-
having great weight
-
important or momentous
-
causing anxiety or worry
Related Words
See heavy.
Other Word Forms
- unweighty adjective
- weightily adverb
- weightiness noun
Etymology
Origin of weighty
Explanation
Weighty things are either very heavy or extremely important and worrisome. Putting your weighty cat on a diet might be a weighty issue that nags at you. If your luggage is too weighty, you'll have to pay an extra fee at the airport. And if you've got a mind full of weighty problems, you won't be able to fall asleep on your long flight. Sometimes this adjective is also used to mean "influential," like the weighty influence your SAT scores might have on your chances of being accepted at a competitive college.
Vocabulary lists containing weighty
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Makhmudov is a big, weighty, strong guy and he needs to use that.
From BBC • Apr. 9, 2026
Throughout its four seasons, “Mormon Wives” has featured lighthearted content like the moms’ love of the soda shop Swig and more weighty topics, including gender roles within the Mormon church.
From Los Angeles Times • Mar. 30, 2026
"Woah! That's heading right for us!" an audience member can be heard saying on a YouTube video of the incident on Tuesday as the weighty object bounces off its track.
From Barron's • Jan. 2, 2026
Initially called “Fiber K” by the DuPont chemist who invented it, it was a replacement for the rubber used in women’s foundation garments, which was weighty, hot and quick to stretch out.
From The Wall Street Journal • Nov. 28, 2025
“Do you have to go home?” asked Gen, whiny and weighty with disappointment.
From "Hello, Universe" by Erin Entrada Kelly
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
