Of or relating to the body or physical being:
Unpremeditated or offhand:
Prohibited from being imported or exported.
Breaking with convention or tradition; not orthodox.
(Archaic) Motivated by the desire to help others.
The definition of official is authorized, or is someone who holds a position of authority.
The definition of informal is something or someone who is casual or relaxed.
Intended only for the use of an individual, group, or organization.
Find another word for unofficial. In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for unofficial, like: unauthorized, personal, unsanctioned, offical, unoffical, informal, casual, contraband, offstage, unorthodox and official.