unofficially
US /ˌʌn.əˈfɪʃ.əl.i/
UK /ˌʌn.əˈfɪʃ.əl.i/

副詞
1.
非正式地
without official authorization or approval; not formally acknowledged.
範例:
•
He was unofficially appointed to the position.
他被非正式地任命到這個職位。
•
The news spread unofficially through the office.
這個消息在辦公室裡非正式地傳開了。
同義詞:
在 Lingoland 學習這個單詞