unbeknown to somebodyNOT KNOWwithout that person knowing about it 不为某人所知的
Unbeknown to him, his wife had been trying to phone him all morning.
他哪里知道,妻子一上午都在给他打电话。
Examples from the Corpus
unbeknown to somebody• Unbeknownst to the public, he was involved in covering up the scandal that was to rock the nation.• Unbeknown to me, Denise had her own plan.
Examples from the Corpus
unbeknown• But unbeknown to Ivor, Stroud had no intention of parting with the money.• You've crept back unbeknown to me.• Thus unbeknown to the competitors, the last valid part of the competition was removed four days before the submission date.• Under the old system many women amasssecretsavingsunbeknown to their husbands.