Noah Webster's New International Dictionary of the English Language

1. (n.) A materialistic person who disdains intellectual values; originally, a native ancient Philistia, a coast region of southern Palestine.

2. (n.) A bailiff.

3. (n.) A person deficient in liberal culture and refinement; one without appreciation of the nobler aspirations and sentiments of humanity; one whose scope is limited to selfish and material interests.

4. (a.) of or pertaining to the Philistines.

5. (a.) Uncultured; commonplace.