frightful /ˈfraɪtfəl/ adjective Learner's definition of FRIGHTFUL
[more frightful; most frightful] somewhat old-fashioned
1
: causing fear骇人的；使惊恐的 -
As he fell, he let out a frightful scream.他摔倒时发出了一声骇人的尖叫。
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a frightful illness that causes extreme pain引起极端痛苦的可怕疾病
2
: very bad or shocking非常恶劣的；惊人的