What are the opposite words for official?

Official is a word that refers to something that is authorized, recognized or approved by a particular authority. Some antonyms of the word "official" are "unofficial," "unauthorized," "informal" and "unapproved." While "official" implies legitimacy and sanction by an authority, "unofficial" refers to something that is not officially approved or recognized. "Unauthorized" is the direct opposite, meaning not having permission or authority. "Informal" is another antonym that refers to a relaxed or casual atmosphere, which is not characterized by being rule-oriented. Lastly, "unapproved" implies that something has not been given the necessary permission or authorization. These are different words that highlight the negative of the word "official" in different ways.

Antonym of the day

well kept
more tumbledown, most tumbledown, adulterated.