The proper adjective form for Amazon is Amazonian, such as the Amazonian rain forest.
The proper adjective for George is Georgian.
The proper adjective for Siam is Siamese.
The proper adjective for Antigua is Antiganantigan
Kuwaiti is the proper adjective for Kuwait.
A proper adjective is a descriptive word derived from a proper noun.Some examples are:Asia (proper noun) - Asian (proper adjective)Brazil (proper noun) - Brazilian (proper adjective)Canada (proper noun) - Canadian (proper adjective)Elizabeth I (proper noun) - Elizabethan (proper adjective)Sigmund Freud (proper noun) - Freudian (proper adjective)George Orwell (proper noun) - Orwellian (proper adjective)Proper nouns and proper adjectives are always capitalized.
Amazonian is the proper adjective for Amazon.
A proper adjective for "Amazon" is "Amazonian." This term is often used to describe things related to the Amazon rainforest, such as its biodiversity, culture, or geography. For example, one might refer to "Amazonian wildlife" or "Amazonian tribes."
Large and varied are both adjectives. South would be an adjective if it were not part of a proper noun. Amazon is likely a noun adjunct here, but Amazonian would be a proper adjective.
The proper adjective for southwest is "southwestern."
The proper adjective is Haitian.
The proper adjective for Portuguese is "Portuguese."
Vietnamese is the proper adjective for Vietnam.
No, old is not a proper adjective. A proper adjective is an adjective derived from a proper noun, such as Swiss cheese, Bolivian pottery, Chinese silk, etc.
The proper adjective for George is Georgian.
Mayan is itself a proper adjective.
The proper adjective for Siam is Siamese.
The proper adjective for Georgia is Georgian.