Within expressions Mythryl prefix, postfix and circumfix operators bind more tightly than any other syntactic construct in an expression.
The two major predefined prefix operators are unary - and *, which are by default respectiv bound to unary negation and unary dereference:
linux$ my eval: x = 4; 4 eval: -x; -4 eval: x = REF 4; REF 4 eval: *x; 4
The only Mythryl postfix operator with a default binding is !, bound to factorial:
linux$ my eval: 7! 5040
There are currently no Mythryl circumfix operators with default bindings.