pantaphobia

pan·ta·pho·bi·a

(pan'tă-fō'bē-ă),
Absolute fearlessness.
[pant- + G. a- priv. + phobos, fear]
References in periodicals archive ?
Or maybe you have pantaphobia,'' she says to Charlie Brown, leaning over her counter to inspect him more closely.
Not quite: Pantaphobia is not, in fact, the fear of everything.