Definition of frightening in English:

frightening

adjective

  • Making someone afraid or anxious; terrifying.

    ‘a frightening experience’
    • ‘A shouted threat would have been less frightening than the amused satisfaction in his tone.’
    • ‘This term, which is quite frightening to me, is often used to mean civilian casualties.’
    • ‘It's a frightening situation and it's gotten to the point where I dread turning the news on.’
    • ‘It's going to be a very new experience for us, and it could be a frightening one, too.’
    • ‘But it is a strange and somewhat frightening thing when you are in the middle of it.’

Pronunciation

frightening

/ˈfrʌɪt(ə)nɪŋ//ˈfrʌɪtnɪŋ/