How to say "rude" in Japanese

• 荒々しいあらあらしいCommon
  i-adjectiveChiefly describes things or manner that are rough, wild, or harsh — a turbulent sea, violent waves, a fierce manner. As a rendering of 'rude' it is marginal; the other senses dominate, so it is seldom the word you want for impoliteness.
  だから、この荒々あらあらしい試合しあいでは選手せんしゅがひどいけがを負おっていたし、ときには死しぬこともあったのです。↗

  So, players were often seriously injured and sometimes even killed in these rough games.
• 粗野そやCommon
  na-adjective, nounCovers 'rude' in the sense of uncouth and lacking refinement: speech or behaviour that is coarse, uneducated, or vulgar. Use it when the rudeness stems from boorish, unpolished manners rather than deliberate disrespect.
  あの長髪ちょうはつの青年せいねんは粗野そやだ。↗

  That long-haired youth is rude.
• 粗暴そぼうCommon
  na-adjective, nounDescribes behaviour or temperament that is rough, wild, or violent, with 'rude' shading into rowdy aggression. Choose it for someone whose conduct is rough and unruly — closer to 'violent' than to mere impoliteness.
  デニスには粗暴そぼうなところがない。↗

  Dennis doesn't have rough manners.
• 無作法ぶさほうCommon
  na-adjective, nounThe core choice for 'rude' as ill-mannered: failing to show courtesy or proper manners. Typical of a person or their behaviour that offends politeness norms, such as someone being discourteous to a guest or elder.
  よくもまああなたはそんな無作法ぶさほうな振る舞ふるまいができるものだ。↗

  How dare you behave so rudely!
• 荒いあらいJLPT N2approx.Common
  i-adjectivePrimarily means rough, wild, or violent — a rough texture, rough driving, violent seas. Its 'rude' sense is marginal, so it is rarely the word you want for impolite behaviour; prefer 無作法 there.
  僕ぼくのボスは人使ひとづかいが荒あらいんだ。↗

  My boss is a slave driver.

'Rude' spans impolite manners, roughness, and vulgarity: 無作法 covers ill-mannered rudeness, 粗野 vulgarity, 粗暴 rough and wild behaviour, while 「荒い」 and 「荒々しい」 chiefly mean rough or violent and are only marginally 'rude'.

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

• 荒々しいあらあらしいrough
• 粗野そやrustic
• 粗暴そぼうrough (behaviour, temperament, etc.)
• 不作法ぶさほうill-mannered
• 荒いあらいrough
• 荒っぽいあらっぽいwild
• ぞんざいrough
• 無遠慮ぶえんりょrude
• いけぞんざいrude
• 礼儀知らずれいぎしらずrude
• ルードrude
• 不届きふとどきoutrageous
• 不躾ぶしつけill-bred
• マナーの悪いマナーのわるいill-mannered
• けしからんoutrageous
• 不埒ふらちlawless
• 粗忽そこつcareless
• けしからぬoutrageous
• 乱暴らんぼうrough (handling, language, etc.)
• 慮外りょがいrude
• がさつill-mannered