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thoughtlessly; recklessly; rashly; indiscriminately; indiscreetly; at random
excessively; unreasonably; immoderately; absurdly
むやみに個人情報を教えるとトラブルに巻き込まれる。
If you recklessly give out personal information, you'll get into trouble.
むやみに薬を服用するのは健康に悪影響を及ぼしかねない。
Taking medicine indiscriminately could have adverse effects on health.
むやみに批判するのではなく建設的な意見を述べるべきだ。
Rather than criticizing recklessly, one should offer constructive opinions.