C1 adjective /ˌsɛrənˈdɪpɪtəs/
serendipitous
偶然の幸運
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
カフェでの彼らの出会いは完全に偶然の幸運でした。