プログレッシブ和英中辞典(第4版)の解説
へいがい【弊害】
an evil; an abuse;〔悪影響〕「an evil [a harmful] influence, a bad effect
この改革には多くの弊害が伴うだろう
The proposed reform will be attended by many evils.
専制政治の弊害を正す
remedy [correct] the abuses of autocratic government
母親の飲酒は胎児に種々の弊害を及ぼすという
It is said that if an expectant mother drinks, it has a harmful effect on the fetus.