i Register
In some senses, all-fired is marked as informal, US. Watch for register when choosing this word.
adj
Extreme, excessive.
It's an all-fired outrage to tell any human creature that he's bound to hell.
adv
Extremely, thoroughly, very.
Of course, I was only stringing Jerry . . . he thinks he's so all-fired cute and smart.
Latha dear, she said resolutely, once in your life you'll just have to quit being so all-fired superstitious.