What are proper adjectives?

A proper adjective is an adjective that is derived from a proper noun. These are often formed by adding the suffixes -n, -ian, -ese, -ish, -i or by entirely changing the spelling of the Word. Or sometimes, there is no need to change the Word

Examples:

(Asia)- Asian

(Egypt)- Egyptian

(Japan)- Japanese

(Britain)- British

(Israel)- Israeli

(France)- French

(Rizal)- Rizalian

(Quezon)- Quezonian

(Darwin)- Darwinian theory

(Igorot)- Igorot

(Hindu)- Hindu

(Christmas)- Christmas card
A proper Adjective is an Adjective formed from a Proper Noun.