Haskell expressions can indeed be pretty terse (and you get some powerful stuff from fairly standard libraries). But balanced somewhat by type signature lines,

Haskell expressions can indeed be pretty terse (and you get some powerful stuff from fairly standard libraries). But balanced somewhat by type signature lines, data types you might not bother defining in a dynamic language, etc. For me, Haskell is a little more verbose than Clojure (similarly-powerful expression language, but potentially skipping a bunch of type-related stuff). Maybe comparable to the likes of JavaScript. APL and Forth-like languages seem to be the place to look for extreme tenseness.