Haskell seems like a candidate. It has a minimum of syntactic noise (it looks like math), and it offers the $ operator, which is great for linearizing what would otherwise be lots of nested parentheses.
Haskell is actually defined as a braces-and-semicolon langage with an off-side rule for the convenience of layout sensitive code. The transformation is simple and completely deterministic, so if delimiters and separators are preferable to a blind coder they can reasonably easily use that.