OFFICIAL Antonyms

• not formal

• used of spoken and written language

• not officially recognized or controlled

• having or fostering a warm or friendly and informal atmosphere

• contrary to rule or accepted order or general practice

• (used of the military) not belonging to or engaged in by regular army forces

• (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement

• a member of an irregular armed force that fights a stronger force by sabotage and harassment

• merchandise that has imperfections; usually sold at a reduced price without the brand name

• not occurring at a regular rate or fixed intervals

• failing to meet a standard of manufacture due to an imperfection

• deviating from normal expectations; somewhat odd, strange, or abnormal

• lacking continuity or regularity

• (of a surface or shape); not level or flat or symmetrical

• independent in behavior or thought

• not endowed with authority

• without official authorization

• lacking requisite official documentation or endorsement

• without explicit official permission

• One who is not an official.

• Not official