How to say "moron" in Japanese
- nounThe default word for calling someone an idiot, fool, or moron. It is the common, all-purpose choice, usable among friends as teasing or as a genuine rebuke depending on tone.
- nounA derogatory way to call someone a stupid idiot or moron. Being less common, it is not usually the word you want; it works as a colorful, contemptuous put-down.
- 低能者ていのうしゃnounMatches 'moron' in the sense of a person of low intelligence, closer to 'imbecile'. It directly disparages someone's mental ability and is harsh rather than playful.
- 馬鹿者ばかものnounA fool or idiot; a somewhat more written-style way to call someone a moron. It conveys the same basic stupidity as ばか but as a noun labeling the person.
- noun, interjectionA colloquial, derogatory insult like 'goddamn idiot' or 'nitwit'. Use it for angry shouting at someone, not for neutral description; it is stronger and ruder than plain ばか.
For the basic 'stupid person' sense use 「ばか」; the others add flavors — 「ばかやろう」 is a heated insult, 「すっとこどっこい」 a derogatory put-down, 馬鹿者 a fool, and 低能者 stresses low intelligence.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
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