1. A horse, animal, or vehicle that is not appropriate or fitting for a particular purpose, rider, or situation
The inexperienced rider was given an unsuitable mount that was too spirited to control.
O cavaleiro inexperiente recebeu uma montaria inadequada que era muito impetuosa para controlar.
2. Equipment or support that is improperly fitted or incompatible with its intended use
Using an unsuitable mount for the camera lens resulted in blurry photographs.
Usar uma montagem inadequada para a lente da câmera resultou em fotografias desfocadas.