Never Confuse “せっかち” and “短気たんき” Again

2019年2月24日2026年4月28日

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Yuka

My Japanese friend called me せっかち. I think it means impatient, but is that the same as 短気?

Rei

Close, but different! せっかち is about being hasty and rushing things. 短気 is about having a short temper and getting angry quickly. Let me explain the distinction!

Both せっかち and 短気（たんき） describe impatient personalities, but they focus on different aspects. Understanding the difference will help you describe people — and yourself — more precisely in Japanese.

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At a Glance

	せっかち (sekkachi)	短気 (tanki)
Core meaning	Hasty, impatient, always rushing	Short-tempered, quick to anger
Focus	Speed and impatience with pace	Emotional reaction — anger and frustration
Image	Someone who rushes through things	Someone who blows up easily
Negative impact	Makes careless mistakes from rushing	Hurts others / loses self-control
Can overlap?	Yes — both describe impatience	Yes — especially when frustrated by slowness

せっかち: Always in a Rush

せっかち describes a person who is hasty and impatient — always wanting things done quickly, rushing ahead without waiting:

彼はせっかちで、いつも先を急ぐ。— He’s hasty and always rushing ahead.
せっかちだから、じっとしていられない。— Because I’m impatient, I can’t sit still.
せっかちな性格のせいで失敗した。— I failed because of my hasty personality.
もう少し待てないの？せっかちだね。— Can’t you wait a little? You’re so impatient.
せっかちな人は慎重さが大切だ。— Hasty people need to be mindful of being careful.

短気: Quick to Anger

短気 focuses on the emotional side of impatience — specifically getting angry or frustrated quickly:

短気を起こしてはいけない。— Don’t let your temper flare up.
彼は短気で、すぐカッとなる。— He has a short temper and flares up easily.
短気は損気。— A short temper is a loss. (proverb)
そんなことで短気を起こさないで。— Don’t lose your temper over something like that.
短気な人は信頼されにくい。— Short-tempered people are hard to trust.

Yuka

So if someone is せっかち they rush and act hastily, but if they’re 短気 they get angry. You could be one without the other?

Rei

Exactly! A せっかち person might just quietly rush and not get angry. A 短気 person might lose their temper even without being in a hurry. But many people are both — impatient AND quick to anger when things are slow!

The Proverb: 短気は損気

短気は損気 (tanki wa sonki) is a well-known Japanese proverb meaning “a short temper only brings loss” — hot-headedness causes more harm than good. It’s frequently used as advice to calm down.

Opposites and Related Words

Word	Meaning
せっかち	Hasty, impatient — always rushing
短気	Short-tempered — quick to anger
のんびり	Easygoing, unhurried (opposite of せっかち)
気が長い	Patient, long-tempered (opposite of 短気)
気が短い	Short-tempered (synonym of 短気)

Quick Quiz

彼は___で、返事が来る前に次のメッセージを送る。(hasty/impatient) → せっかち
___を起こして怒鳴ってしまった。(lost temper) → 短気
___は損気という言葉がある。(short temper proverb) → 短気
___な人は、もう少しゆっくり考えるといい。(hasty) → せっかち

Summary

Word	Describes
せっかち	Impatience with pace — rushing, not waiting, hastiness
短気	Impatience with emotions — quick to anger, short temper

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