sobering

/ˈsoʊbərɪŋ/
adjective
  1. Causing someone to become serious or thoughtful, often because of an unpleasant or shocking fact.
    • It was a sobering reminder that life can change in an instant.
    • The documentary about climate change was a sobering experience for the students.
    • The report contained sobering statistics about the number of endangered species.
Synonyms
What does "sobering" mean? | whatsthatwordmean | whatsthatwordmean