Preparing the way for anything by previous measures of adaptation; antecedent and adapted to what follows; introductory; preparative; as, a preparatory school; a preparatory condition.
- Serving to make ready or prepare; introductory. See Synonyms at preliminary.
- Relating to or engaged in study or training that serves as preparation for advanced education: a preparatory course; preparatory students.
- In preparation for. Used with to: thoroughly cleaned the house preparatory to our departure.