Definition of seriousness
English to English noun - an earnest and sincere feeling
source: WordNet 3.0 - the quality of arousing fear or distress
He learned the seriousness of his illness.
source: WordNet 3.0 - the trait of being serious
A lack of solemnity is not necessarily a lack of seriousness.
source: WordNet 3.0
Visual Synonyms 
Nearby Word
seriousness, shrewishness, serious music, scragginess, scarceness, searching, sarcasmous, seriocomic, sarking, sharking, surseance, sergeancy, shrieking, surceaseance, surging, shirking, scorching, surgeoncy, saracenic, screeching
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