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contradiction; inconsistency
彼の発言には矛盾があって信用できないと思う。
There are contradictions in his statements, so I can't trust him.
理想と現実の矛盾に悩んでいる人は多いはずだ。
Many people must be troubled by the contradiction between ideals and reality.
この計画には矛盾点があるから見直すべきだね。
There are contradictions in this plan, so it should be reviewed.