expression, godan verb (-ru, irregular)
be a problem; have a flaw; be defective
Used when something has a defect, flaw, or problematic aspect. Often appears in negative contexts or when pointing out an issue.
この計画には難がある。
There is a problem with this plan.
彼の説明に難があるとは思わない。
I don't think there is anything wrong with his explanation.