unofficial

play
adjective un·of·fi·cial \ˌən-ə-ˈfi-shəl also -ō-\

Definition of unofficial

  1. :  not authorized or acknowledged by a government, group, class, or society :  not official <unofficial results> <an unofficial policy>

unofficially

adverb

1784

First Known Use of unofficial

1784


UNOFFICIAL Defined for Kids

unofficial

adjective un·of·fi·cial \ˌən-ə-ˈfi-shəl\

Definition of unofficial for Students

  1. :  not official

unofficially

adverb

Medical Dictionary

unofficial

play
adjective un·of·fi·cial \ˌən-ə-ˈfish-əl\

Medical Definition of unofficial

  1. :  not official; specifically :  of, relating to, or being a drug not described in the United States Pharmacopeia and National Formulary—compare nonofficial, official



Seen and Heard

What made you want to look up unofficial? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a leading champion of a cause

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • fox-in-front-of-cabin-in-winter
  • The month of December comes from a Latin word that referred to which month of the year?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ