undeclared
🇺🇸
/ˌʌndɪˈklerd/
🇬🇧
/ˌʌndɪˈkleəd/
Something that has not been officially stated or admitted.
The customs officer found some undeclared items in the suitcase.
海关官员在手提箱中发现了一些未申报的物品。