hardnose (?.)
- Mafioso
- Young Turk
- ass
- beast
- beldam
- berserk
- berserker
- bigot
- bitter-ender
- bomber
- brute
- bullethead
- demon
- devil
- diehard
- dogmatist
- donkey
- dragon
- fanatic
- fiend
- fire-eater
- firebrand
- fury
- goon
- gorilla
- gunsel
- hell-raiser
- hellcat
- hellhound
- hellion
- holy terror
- hood
- hoodlum
- hothead
- hotspur
- incendiary
- intransigeant
- intransigent
- killer
- last-ditcher
- mad dog
- madcap
- maverick
- monster
- mugger
- mule
- perverse fool
- pighead
- positivist
- purist
- rapist
- revolutionary
- savage
- she-wolf
- spitfire
- standpat
- standpatter
- stickler
- termagant
- terror
- terrorist
- tiger
- tigress
- tough
- tough guy
- ugly customer
- violent
- virago
- vixen
- wild beast
- witch
- wolf
