seriousness
Americannoun
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earnest or sincere character or attitude.
The proposal was talked about, but I can't say with how much seriousness it was discussed.
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solemn or somber character or attitude.
Is that why your face is so grim—you're fighting to maintain seriousness and not laugh at the speaker’s name?
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the quality of showing or requiring deep thought or concentration.
The two chefs approach their gourmet cuisine with the pensive seriousness others might bring to a difficult math problem.
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the quality of being important or weighty, or of giving cause for concern.
We need educational tools that convey the seriousness of copyright infringement, as well as its consequences and penalties.
Other Word Forms
Etymology
Origin of seriousness
Explanation
Seriousness is a quality of being calmly intent, or serious. Your seriousness will serve you well when you're studying for an important test. You might talk about the seriousness of an argument between two friends, or the seriousness of your math teacher when she expects the class to pay attention. Sometimes seriousness implies a bit of worry, like when you ask about the seriousness of your grandmother's health problems. The noun seriousness comes from an adjective, serious, with a Latin root, serius, which means "weighty, important, or grave."
Vocabulary lists containing seriousness
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.
Lindelof’s involvement, along with that of “Supergirl: Woman of Tomorrow” series author Tom King, signals a seriousness of intent amplified by the placing the series’ showrunner stewardship under “True Detective” and “Ozark” producer Chris Mundy.
From Salon ● Aug. 14, 2026
Despite Sheriff McGinty stating the seriousness of Neil's crimes passing the threshold for custody, he decided against jailing him to due his "advanced years", lack of previous convictions and low risk of re-offending.
From BBC ● Aug. 10, 2026
“We did not fully grasp the seriousness of her physical condition,” the note said.
From The Wall Street Journal ● Aug. 2, 2026
“If your garage faces the street, treat that door with the same seriousness as your front door,” Linn said.
From MarketWatch ● Aug. 1, 2026
There was a seriousness in Harriet’s manner which prepared her, quite as much as her words, for something more than ordinary.
From "Emma" by Jane Austen
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.
