1an unguarded momentATTENTION#a time when you are not paying attention to what you are doing or saying 一不留神;一不小心
In an unguarded moment, he admitted that he wanted to quit his job.
他一不小心就承认了他想辞职。
Examples from the Corpus
an unguarded moment• As he stepped to one side, Christina had a clear view of Stephen's face in an unguarded moment.• Had his anti-female attitude been weakened during an unguarded moment?• The only humanexplanation was that one of us had said something in an unguarded moment.• You caught him at an unguarded moment.• In an unguarded moment, he admitted taking the file.
2.CARELESSan unguarded remark, statement etc is one that you make carelessly without thinking of the possible effects 〔话语、声明等〕粗心大意的,不慎重的,轻率的
unguarded• He is almost as unguarded and hungry as she is, and his partnering is so musical it allows her to fly.• an unguardedborder• You caught him at an unguarded moment.• I pondered the connection between my dream and my chum's unguardednap.• Well, if Isabel had any ideas of playing on that one unguarded remark she could think again, he vowed grimly.• The film-makers used a chink in the technologicalarmour to record the candidates in their unguarded, uncensored private moments.• He suffered from the kind of hypersensitivity which, unchecked or unguarded, would have incapacitated him.