You mean not only not consummated but also not ratified?
Without getting too explicit how would you define physically capable for a man?
I am still trying to think what would make it impossible for a woman though.
I mean that in order to be ratified (public ceremony, for those who might need a little help with the vocabulary here) the Church requires that FIRST it must be established that the couple is capable of performing the marital act (no help with vocab here). This is usually done by simply asking each potential spouse in a private setting as part of the usual marriage preparation.
With regard to the woman, if her body is “normal” then nothing else needs to be asked. If a woman had an operation because of cancer or a car accident, it’s possible that she might not have the physical ability for the marital act.
Note to readers here: when I say “the ability for the marital act” that is NOT synonymous with saying the ability or likelihood of actually bearing a child.
Back to your question/comment
Recall though, that you were asking about a gender-ambiguous person (hermaphrodite). I was responding to
that specific question. In order to validly contract marriage, that person would need to have the ability to engage in the marital act.
Now, as far as I know, some hermaphrodites are indeed capable of engaging in the marital act. However, in such cases, that will always be either as a man, or as a woman, but never both-for-the-same-person.
See canon 1068 of the 1917 code
Here is a link to some commentary
You will need to scroll down to that particular canon.