non-official

US 
UK 
  • n.非正式的
  • Web非官方;非法定的;是非官方的
n.
1.
非正式的

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard