happening before something that is more important
you cannot take the math102 now ,before you should take the math101 before as a preliminary lesson.
by taka53 January 16, 2012
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“denoting an action or event preceding or done in preparation for something fuller or more important”

So pretty much something that happens in preparation for an event or action.
Preliminary
Sexually: anything you do before sex
- head
- fingering
- cunnilungus
by Moop moop October 22, 2018
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Someone so stupid that you know, before you even meet them.
That guy in the wheelchair looks like a preliminary retard.
by Matthew Turney November 8, 2003
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