IPA: /ˈstɑːrtlɪŋ/
KK: /ˈstɑrtlɪŋ/
Causing surprise or shock; something that makes you feel startled.
The sudden loud noise was startling and made everyone jump.
To cause someone to feel sudden shock or surprise.
The loud noise was startling and made everyone jump.
Past: startled
Past Participle: startled
Startling is formed from "start" (from Old English "styrtan", meaning to leap up or jump) and the suffix "-ling" (which often denotes a characteristic or quality). The word "startling" describes something that causes a sudden leap or jump in surprise or alarm.
Think of something that makes you 'jump' ('start') in surprise — that's why 'startling' means surprising.