猛烈もうれつ
mōretsu

na-Adjective

1. fierce; intense; severe; violent; strong; vehement; terrific; terrible

警官けいかんがやってくるのをるとかれ猛烈もうれつはしした。
kēkanga yattekuru nō miruto karewa mōretsuni hashiridashita.
When he saw a policeman coming, he began to run like anything.