alarming

/əˈlɑrmɪŋ/
adjective
  1. Causing fear, worry, or concern about a possible danger or problem.
    • The report showed an alarming increase in pollution levels.
    • It is alarming how quickly the forest fire spread.
    • She received alarming news about her friend's health.
What does "alarming" mean? | whatsthatwordmean | whatsthatwordmean