Translation guide
The English word 'aggressive' covers a wide range of meanings, from hostile behavior to bold assertiveness. In Japanese, different words are used depending on whether the aggression is physical, verbal, or simply a proactive attitude. This guide helps learners choose the right expression for each context.
Describing actions or attitudes that are physically or verbally threatening, confrontational, or intended to harm.
The most direct translation for 'aggressive' in the sense of hostile or attacking behavior. Used for both physical and verbal aggression.
彼は酔うと攻撃的になる。
He becomes aggressive when he drinks.
攻撃的な態度を取るのはやめてください。
Please stop taking an aggressive attitude.
Literally 'war-loving', this word emphasizes a belligerent or combative nature. Often used for nations, groups, or personalities.
その国は好戦的な政策を取っている。
That country is adopting aggressive policies.
Describes a posture or attitude that is ready to fight, often used for a confrontational stance in arguments.
彼はいつも喧嘩腰だ。
He always has a chip on his shoulder.
Describing a person who is assertive, ambitious, or relentless in achieving objectives, sometimes to the point of being overbearing.
The most common and positive way to say 'aggressive' in the sense of being proactive, assertive, and taking initiative. Often used in business and personal development contexts.
彼女は仕事に対して積極的だ。
She is aggressive in her work.
もっと積極的に発言したほうがいい。
You should speak up more aggressively.
Means 'strong-willed' or 'bullish', often used for a confident, aggressive stance in negotiations or competitions.
Literally 'push is strong', this phrase describes someone who is pushy or assertive in getting their way, sometimes with a negative nuance.
彼は押しが強いから、断れなかった。
He is so aggressive that I couldn't refuse.
Describing actions, methods, or treatments that are forceful, intensive, or drastic.
Also used for 'aggressive' in the sense of proactive and intensive measures, such as aggressive treatment or aggressive marketing.
積極的な治療を行う。
Administer aggressive treatment.
Means 'powerful' or 'intensive', used for aggressive cleaning agents, medicines, etc.
Means 'drastic' or 'bold', used for aggressive decisions or actions.
Describing diseases, weeds, or organisms that spread rapidly and harmfully.
Literally 'progress is fast', this phrase is commonly used for aggressive diseases like cancer.
彼の癌は進行が早い。
His cancer is aggressive.
Medical term meaning 'invasive', used for aggressive tumors.
浸潤性の高い腫瘍が見つかった。
A highly aggressive tumor was found.
Means 'highly reproductive', used for aggressive weeds or invasive species.
この植物は繁殖力が強く、駆除が難しい。
This plant is aggressive and hard to eradicate.
攻撃的 (kōgekiteki) means hostile or attacking, while 積極的 (sekkyokuteki) means proactive or assertive. Using 攻撃的 when you mean 'assertive' can sound like you are accusing someone of being violent. In business contexts, 積極的 is the safe choice for 'aggressive' in a positive sense.
彼は攻撃的な性格だ。
He has an aggressive (hostile) personality.
彼女は積極的に新しいプロジェクトに取り組む。
She aggressively (proactively) tackles new projects.
English speakers often use 'aggressive' to mean 'assertive' or 'proactive'. Directly translating this as 攻撃的 will almost always sound negative in Japanese. Use 積極的 or other context-appropriate words instead.
He approached the negotiation with an aggressive stance.
Loanword from English, often used in marketing or sports contexts to mean 'aggressive' in a positive, dynamic sense.
アグレッシブな営業戦略を立てる。
Develop an aggressive sales strategy.
この洗剤は強力な油汚れに効く。
This detergent is aggressive on grease stains.
思い切った策を取る必要がある。
We need to take aggressive measures.