First and Prelusive

First adjective - Coming before all others in time or order.

Prelusive and first are semantically related. In some cases you can use "Prelusive" instead an adjective "First".

Nearby Word: firstly

Prelusive adjective - Coming before the main part or item usually to introduce or prepare for what follows.

First and prelusive are semantically related. Sometimes you can use "First" instead an adjective "Prelusive".