Opening and Prelusive

Opening adjective - First or beginning.

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

Nearby Words: open, openness, opened, opener

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

Opening and prelusive are semantically related in preliminary topic. You can use "Opening" instead an adjective "Prelusive", if it concerns topics such as introductory.