[ChrisMAg2]

Nick,
unverletzt is a still existing expression.

Unlike the first, unverwundet would be very uncommon, esp. nowerdays. If it was used then, my guess would be, that the usual "logic" of not being injured would result in not being mentioned at all. Although sometimes you might stumble on a report, which states (generaly) "Ausfälle" (meaning causalities of any kind) followed by i.e. erkrankt, verwundet, verletzt (on the "un-" version of the latter two, if it were of relevance), vermisst, gefangen, gefallen etc.