1.Definition: causing fear or dread or terror
"The awful war", "An awful risk"
2.Definition: exceptionally bad or displeasing
"An awful voice"
3.Definition: extreme in degree or extent or amount or impact
4.Definition: inspired by a feeling of fearful wonderment or reverence
"Awful worshippers with bowed heads"
5.Definition: inspiring awe or admiration or wonder
"This sea, whose gently awful stirrings seem to speak of some hidden soul beneath"
6.Definition: offensive or even (of persons) malicious