#10815
I want to discuss one particular aspect of Chicago's hyphenation advice, which seems questionable at the outset and is so often abused in practice that I think it needs a good thrashing. This is the notion that a compound adjective should be hyphenated when it immediately precedes a noun, and left open when it follows the noun, for example in the predicate. Chicago's example is fast sailing ship, which is ambiguous because it might mean a sailing ship that is fast or a ship that is sailing fast. Hence, to resolve the ambiguity, you hyphenate fast-sailing if you mean to say it is a ship that is sailing fast. But the hyphen is not necessary except when the phrase immediately precedes ship, because the phrase is not ambiguous elsewhere.
Tadfor, Tom Little. Telp.com (1996). Articles>Editing