It would be termed the "Elizabethan era," e.g., "Queen Elizabeth ruled during the Elizabethan era."
Another answer
The previous answer describes the period during which Elizabeth I reigned. The question asks for an adjective for the queen herself. If that is really what the questioner wants, I would offer "royal" and "regal" as suitable examples.
The proper adjective is Elizabethan, which describes a noun as of or the style of the historic period of Queen Elizabeth I of England.
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.
The proper adjective for Siam is Siamese.
The proper adjective for George is Georgian.
The proper adjective for Antigua is Antiganantigan
Oklahoman is the proper adjective for Oklahoma.
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.
Vietnamese is the proper adjective for Vietnam.
The proper adjective for George is Georgian.
The proper adjective for Siam is Siamese.
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.
France is always a proper noun it is never a proper adjective (what is a proper adjective? The adjective is french. I like french food
The proper adjective for Antigua is Antiganantigan
Kuwaiti is the proper adjective for Kuwait.
Oklahoman is the proper adjective for Oklahoma.
Paraguayan is the proper adjective for Paraguay
The proper adjective for the proper noun Shakespeare(always capitalize a proper noun) is Shakespearean (always capitalize a proper adjective).
English is a proper adjective.