Main Entry: fright·ful

Pronunciation: \ˈfrīt-fəl\

Function: adjective

Date: 1607

1 : causing intense fear or alarm : terrifying
2 : startling especially in being bad or objectionable <a frightful novel>
3 : extreme <frightful thirst>

— fright·ful·ly \-fə-lē\ adverb

— fright·ful·ness noun