scare ‧ mon ‧ ger ‧ ing /ˈskeəˌmʌŋɡ ə rɪŋ $ ˈskerˌmɑːŋ-, -ˌmʌŋ-/ BrE AmE noun [uncountable] British English
the practice of deliberately making people worried or nervous, especially in order to get a political or other advantage
—scaremonger noun [countable]