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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

adjective
  1. 1
    bad or dangerous enough to make you worried

    American English synonyms or related words for this sense of serious

  2. 2
    important and deserving attention

    American English synonyms or related words for this sense of serious

  3. 3
    meaning what you say or do, and not making a joke

    American English synonyms or related words for this sense of serious

  4. 4
    careful and detailed

    American English synonyms or related words for this sense of serious

  5. 5
    someone who is serious thinks carefully about things and does not laugh much

    American English synonyms or related words for this sense of serious

    1. a.
      appearing worried or upset

      American English synonyms or related words for this sense of serious

  6. 9
    informal extreme, or large in amount

    American English synonyms or related words for this sense of serious

derived word

seriousness

noun

pre-cation

a paid holiday given to a new employee before they start their job

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