1. A horse, animal, or equipment that is unsuitable or improper for a particular purpose, rider, or situation
The elderly gentleman refused to ride the wild horse, calling it an inappropriate mount for someone of his age.
O cavalheiro idoso recusou-se a montar o cavalo selvagem, chamando-o de montaria inadequada para alguém da sua idade.
2. An improper or incorrect base, support, or frame for mounting or attaching something
The mirror was attached to an inappropriate mount that couldn't support its weight.
O espelho foi anexado a um suporte inadequado que não conseguia suportar seu peso.