frightening /ˈfrɑɪt.ən.ɪŋ/ /ˈfraɪtnɪŋ/
daunting /ˈdɔntɪŋ/ /ˈdɔːntɪŋ/
intimidating /ɪnˈtɪmɪˌdeɪtɪŋ/ /ɪnˈtɪmɪdeɪtɪŋ/