油断ゆだん Common Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb negligence;carelessness;inattention;unpreparedness 私は油断していたことに気づいた。 I realized I was off my guard.
油断も隙もないゆだんもすきもない Expression English jmdict 1 expressions (phrases one must constantly be on one's guard with ...;one cannot be too careful of ... Other forms 油断も隙も無い 【ゆだんもすきもない】