悪徳|あくとくakutoku[0]heiban (flat)

1. nounvice; immorality; corruption
   怠惰たいだは悪徳あくとくのもと。↗

   Idle hands are the devil's tool.

• Synonym悪あくNeutralThe abstract concept of evil, as in 「善と悪」; can also mean a bad person or villain. The broadest and most abstract term here, wider than 「悪徳」.
• Related不義ふぎWrittenWritten, with an old-fashioned air. Means unrighteous conduct, and unlike 「悪徳」 it can also refer to adultery or infidelity.
• Related悪事あくじNeutralRefers to bad deeds or crimes, as in 「悪事を働く」. Focuses on concrete acts, whereas 「悪徳」 typically labels corrupt businesses and people.
• Related悪あくNeutralThe abstract concept of evil, as in 「善と悪」; can also mean a bad person or villain. The broadest and most abstract term here, wider than 「悪徳」.
• Related不道徳ふどうとくNeutralRefers to what goes against morality, as in 「不道徳な行為」. Focuses on the moral dimension, whereas 「悪徳」 often implies deceiving people for gain.
• Related悪行あくぎょうWrittenA written word for wicked deeds. Focuses on concrete acts; unlike 「悪徳」, it is not used attributively to modify industries.
• Related不正行為ふせいこういNeutralCovers cheating, malpractice and other unfair means, leaning toward rule- or exam-related situations — narrower and more specific than 「悪徳」.
• Antonym美徳びとくNeutralAntonym: virtue, good moral conduct. The direct opposite of 「悪徳」, which denotes moral corruption.
• Antonym善徳ぜんとくWrittenAntonym: good, virtuous character. A written word, standing opposite 「悪徳」.

Use 「悪徳」 for immorality that harms others for gain; it often modifies businesses, as in 「悪徳商法」「悪徳業者」. Say 「不道徳」 for what simply violates morality, 「悪事」 for concrete bad deeds, and 「美徳」 for the opposite, virtue.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 良よくないこと。積極的せっきょくてきな評価ひょうかができないこと。
2. 行おこない、考かんがえがよこしまなこと。特とくに、他人たにんを騙だますなどして、不当ふとうな利益りえきを得えようとすること。