乱暴|らんぼうranbou[0]heiban (flat)

1. noun, na-adjective, suru verb, intransitive verbviolence; assault; rowdiness; wildness; running riot
   弟おとうとの乱暴らんぼうはこのごろ目めに余あまる。↗

   My brother has been much too rowdy lately.
2. na-adjective, nounrough (handling, language, etc.); reckless; careless; coarse; rude; unreasonable (e.g. demand); wild (e.g. argument)
   道具どうぐを乱暴らんぼうに扱あつかうな。↗

   Don't handle the tools roughly.
3. noun, suru verb, intransitive verbrape; sexual assault

• Synonym暴力ぼうりょくNeutralA noun for violence — using force or hitting someone; it centers on the act itself, while 「乱暴」 also covers rough speech and careless handling.
• Synonym荒っぽいあらっぽいNeutralRough in manner and sloppy in one's work; common in speech and a shade milder than 「乱暴」.
• Synonym粗暴そぼうWrittenRough and violent in temperament or bearing; written-style, often seen in news reports.
• Synonym暴行ぼうこうWrittenA noun for acts of violence like assault; formal, and in news reports a euphemism for sexual assault too — more specific than 「乱暴」.
• Synonym荒々しいあらあらしいNeutralRough and wild, used mostly of actions and personality; carries a sense of force.
• SynonymバイオレンスNeutralLoanword for violence, used mostly of film genres, as in 「バイオレンス映画」.
• Related凶暴きょうぼうNeutralSavage and ferocious in nature, as in 「凶暴な犬」; more vicious than 「乱暴」.
• Related粗野そやWrittenCoarse, vulgar speech and behavior; stresses a lack of refinement and doesn't necessarily involve physical force.
• Related暴挙ぼうきょWrittenA noun for a reckless, high-handed act that ignores the consequences, as in 「暴挙に出る」.
• Related暴状ぼうじょうWrittenWritten language for the state or details of an atrocity; rare today — say 「暴行」 in everyday speech.
• Related暴悪ぼうあくWrittenWritten language for ferocity and brutality; rare in modern Japanese — say 「凶暴」 instead.
• Related狂暴きょうぼうWrittenFerocity as if gone mad, as in 「狂暴な振る舞い」; stresses loss of control.
• Related手荒てあらNeutralRough in the way one treats people or things, as in 「手荒な真似」.
• Related乱行らんぎょうWrittenA noun for outrageous, dissolute behavior; leans toward written style.
• Related荒くれあらくれNeutralWild, rowdy behavior or manner, or such a person, as in 「荒くれ者」.
• Related手荒いてあらいNeutralRough in handling someone or something, as in 「手荒く扱う」.
• RelatedがらっぱちCasualColloquial, with an Edo-dialect flavor: a person rough in speech and behavior, heedless of etiquette.
• Antonym丁寧ていねいNeutralPolite, courteous and thorough — the opposite of the rough, careless 「乱暴」.
• Antonym穏やかおだやかNeutralCalm and gentle, as in 「穏やかな人」; the opposite of the rough 「乱暴」.
• Antonym慎重しんちょうNeutralCareful and cautious, as in 「慎重に扱う」; the opposite of the reckless 「乱暴」.

Use 「乱暴」 for getting physical, rough speech or manners, or careless, sloppy handling — 「乱暴な運転」「乱暴な言い方」. Pick 「暴力」 for violence itself, 「凶暴」 for savage ferocity, 「粗野」 for coarse, unrefined conduct; 「丁寧」 is the polite, careful opposite. Many alternatives (暴状, 暴悪, 乱行, 暴挙, 粗暴, 暴行) are written-style, while 「荒っぽい」 is a slightly milder everyday choice.

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

1. 相手あいてに対たいして荒々あらあらしく振る舞ふるまうこと。
2. やり方かた・扱あつかい方かたに丁寧ていねいさがなく、荒あらっぽくて雑ざつなこと。
3. 暴力ぼうりょく。強姦ごうかん。
4. 相手あいてに対たいして荒々あらあらしく振る舞ふるまう。
5. 暴力ぼうりょくをふるう。強姦ごうかんする。