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Definition of seriousness
seriousness
/ˈsɪr.i.əs.nəs/
se · ri · ous · ness
Adverb:seriously
•Adjective:serious
seriousness Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 5k
Syllables
4
seriousness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The degree to which a situation, problem, or condition is important, severe, critical, or dangerous.
Example
"The doctors quickly realized the seriousness of the patient's symptoms and ordered immediate tests."
2
The quality or state of being solemn, earnest, thoughtful, or sincere rather than playful or joking.
Example
"She spoke with great seriousness about her plans to study medicine abroad."
Synonyms
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View all antonyms for seriousness• Rhymes for seriousness
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Word Origin & Etymology
Formed in English from the adjective 'serious' (from Late Latin 'seriosus', meaning weighty or important) and the native Old English suffix '-ness', indicating a state or quality.
Cite this Entry
Wordmom. (2026). Definition of Seriousness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/seriousness