Subordinate

1. Placed in a lower class, rank, or position.

Synonym: lesser

Antonyms: superior, superordinate

2. Submissive or inferior to, or controlled by authority.

Antonym: insubordinate

3. (grammar, of a clause, not comparable) dependent on and either modifying or complementing the main clause

Synonym: dependent

Antonyms: independent, main

4. Descending in a regular series.