preliminary, prelim -- (a minor match preceding the main event)
preliminary, overture, prelude -- (something that serves as a preceding event or introduces what follows; "training is a necessary preliminary to employment"; "drinks were the overture to dinner")
Overview of adj preliminary
The adj preliminary has 1 sense
preliminary -- (denoting an action or event preceding or in preparation for something more important; designed to orient or acquaint with a situation before proceeding; "a preliminary investigation")