English Lexicon

Serious

/ˈsɪə.ri.əs/
adjectiveCEFR B1 (Intermediate)Top #450 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Solemn or thoughtful in character, manner, or mood; not smiling or joking.

    "He had a serious expression on his face when he delivered the news."
  2. 2

    Demanding careful consideration or application; of significant importance or consequence.

    "We are facing a serious problem that requires immediate attention."

Thesaurus & Semantic Spectrum

Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Late Latin word 'serius', meaning grave or earnest, which entered the English language in the late 15th century. Over time, the semantic scope expanded from denoting solemnity of character to also describing situations of considerable magnitude, depth, or critical importance.

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