| Date: | 1300-1400 |
| Language: | Old French |
| Origin: | vicieux, from Latin vitiosus 'full of faults', from vitium; VICE |
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vi‧cious

1 violent and cruel in a way that hurts someone physically :
a vicious murder
a vicious killer
Keep away from that dog, he can be vicious.
a vicious murder
a vicious killer
Keep away from that dog, he can be vicious.2 very unkind in a way that is intended to hurt someone's feelings or make their character seem bad [= malicious]:
Sarah can be quite vicious at times.
a vicious personal attack on the Duchess
She was shocked by the vicious tone in his voice.
Sarah can be quite vicious at times.
a vicious personal attack on the Duchess
She was shocked by the vicious tone in his voice.3 unpleasantly strong or severe [= violent]:
a vicious gust of wind
a vicious headache
a vicious gust of wind
a vicious headache —viciously adverb:
He twisted her arm viciously.
He twisted her arm viciously. —viciousness noun [uncountable]
