无故wúgùwithout cause or reason; for no reasonHSK 7-9PronunciationwúgùExample sentence他无故缺席了今天的会议,让大家很意外。Tā wúgù quēxí le jīntiān de huìyì, ràng dàjiā hěn yìwài.He was absent from today's meeting without any reason, which surprised everyone.Read and choose an answerOne fixed sampleExplore a sample