どうして（どうして、doushite）
- why

The Japanese word どうしてどうして, written in hiragana, primarily functions as an interrogative adverb meaning "why," "how," or "for what reason." It's used to ask for the cause, reason, or explanation behind something. The word implies a desire for understanding the motive or circumstances.

⚫︎どうして学校に遅刻しましたか？ ・Translation: Why were you late for school? ⚫︎どうしてそんなに悲しいの？ ・Translation: Why are you so sad? ⚫︎どうして日本語を勉強しているの？ ・Translation: Why are you studying Japanese?

どうしてどうして is used when you want to inquire about the reason for an action, situation, or feeling. It can be used in a variety of contexts, from everyday conversations to more formal settings. It typically appears at the beginning of a question. The response to どうしてどうして questions often involves providing a reason or explanation using words like から ("because"), ため ("because of"), or a verb in a casual form.

どうしてどうして is typically written in hiragana. There are no other common ways to write this word. Okurigana (the suffix hiragana) is standard.

⚫︎なぜ (naze): This is a more formal synonym for "why." ⚫︎どうしてどうして is often preferred in casual settings. ⚫︎なんで (nande): A more casual and sometimes impolite version of "why." ⚫︎どういうわけで (douiu wake de): Another way to ask "why."

There aren't direct antonyms for どうしてどうして in the same way as words like "hot" and "cold." The opposite of asking "why" would be providing an answer, such as stating a reason.

どうして今日は雨が降っているの？ ・Translation: Why is it raining today? ・Explanation: This sentence uses どうしてどうして to ask about the reason for the rain.

どうして彼は怒っているの？ ・Translation: Why is he angry? ・Explanation: This sentence uses どうしてどうして to inquire about the reason for someone's anger.

The word どうしてどうして is a combination of two elements: どう (dou): which means "how" or "in what way." して (shite): a conjugated form of the verb する (suru), meaning "to do". Therefore, the meaning of どうしてどうして essentially asks "How did it do?" or "By what means did it happen?", evolving to mean "why."