Which is why american style manuals will always ask you to merge it with the subsequent word, without a hyphen Leaving non stranded doesn't work either as it is a bound morpheme, a prefix not a word (in english) There seem to be three terms used by experts in the field
Laura B
However, the other two seem to be more commonly used in that context.
Suppose that we want to negate a generic compound adjective adjective1 adjective2