IPA: /ˈtrʌblɪŋ/
KK: /ˈtrʌblɪŋ/
Causing worry or distress; something that makes you feel uneasy or concerned.
The news about the missing children is very troubling for the community.
To cause worry or distress to someone.
The news of the storm was troubling for the residents.
Past: troubled
Past Participle: troubled
Troubling → It is formed from "trouble" (from Old French *trouble*, meaning disturbance or confusion) and "-ing" (a suffix used to form present participles). The word "troubling" means causing disturbance or anxiety.
Think of something that causes a 'disturbance' ('trouble') — the '-ing' shows it's happening now, so 'troubling' means something that is currently causing worry.