unannounced
adjective
UK/ˌʌn.əˈnaʊnst/
US/ˌʌn.əˈnaʊnst/
Definitions of unannounced adjective
Arriving or happening without prior notice or warning; unexpectedly.
未经通知的；突然的
He arrived unannounced, which caught us a little off guard.
他未经通知就来了，这让我们有点措手不及。
The committee members showed up at the meeting unannounced.
委员会成员未经通知就出现在会议上。
She barged into the office unannounced.
她未经通知就闯进了办公室。
adverb
UK/ˌʌn.əˈnaʊnst/
US/ˌʌn.əˈnaʊnst/
Definitions of unannounced adverb
Arriving or happening without prior notice or warning; unexpectedly.
未经通知的；突然的
He arrived unannounced, which caught us a little off guard.
他未经通知就来了，这让我们有点措手不及。
The committee members showed up at the meeting unannounced.
委员会成员未经通知就出现在会议上。
She barged into the office unannounced.
她未经通知就闯进了办公室。