短気|たんきtanki[1]atamadaka (head-high)

1. noun, na-adjectiveshort temper; quick temper; hot temper; impatience; irritability
   彼かれの短気たんきは手てに負おえない。↗

   He has an uncontrollable temper.

• SynonymせっかちNeutralNoun for a hasty, impatient disposition, as in 「せっかちな人」. Focuses on rushing through things; anger is not necessarily involved.
• Synonym気短きみじかNeutralAdjectival noun for a hasty, impatient nature, as in 「気短な人」. Synonymous with 「短気」 but used less often.
• Synonym気の短いきのみじかいCasualColloquial idiom for a quick temper, mostly modifying people as in 「気の短い人」. Much the same meaning as 「短気」.
• RelatedいらいらCasualAdverb and noun for feeling irritated, as in 「イライラする」. The most common colloquial word; focuses on the emotional state.
• Related焦燥しょうそうWrittenNoun for agitation and impatience, as in 「焦燥感」. Written/formal; stresses an inner sense of burning urgency.
• Related癇性かんしょうWrittenNoun for a nervous, easily angered nature. Written/formal in tone and rather dated.
• Related癇癪かんしゃくNeutralNoun for a fit of temper, as in 「癇癪を起こす」. Focuses on a momentary outburst.
• Related癇癖かんぺきWrittenWritten word for an irritable temper. Rare.
• Related癇かんNeutralNoun for nervous, easily provoked irritability, as in 「癇に障る」. Mostly used in set phrases.
• Related怒りっぽいおこりっぽいCasualAdjective for being quick to anger, as in 「怒りっぽい性格」. Colloquial and the most direct way to say it.
• RelatedむしゃくしゃCasualAdverb for feeling vexed and out of sorts, as in 「むしゃくしゃする」. Colloquial.
• Antonym忍耐強いにんたいづよいNeutralMeans patient and persevering, as in 「忍耐強い人」. The direct opposite of 「短気」.

Use 「短気」 for a quick temper that flares up easily: 「短気な人」「短気を起こす」. For rushing through things say 「せっかち」, for being quick to anger 「怒りっぽい」, for a momentary outburst 「癇癪」. The opposite is 「忍耐強い」.

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

1. 気きが短みじかいこと。せっかちなこと。性急せいきゅう。