Adjective introductory has 3 senses
- introductory - serving to open or begin; "began the slide show with some introductory remarks"
Antonym: closing (indirect, via opening)
- basic, introductory - serving as a base or starting point; "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools"; "an introductory art course"
Antonym: last (indirect, via intermediate, first)
Antonym: intermediate (indirect, via first, last)
- introductory, prefatorial, prefatory - serving as an introduction or preface
Antonym: succeeding (indirect, via preceding)
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