How to say "hot-blooded" in Japanese

• 血の気の多いちのけのおおい
  expression, i-adjectiveHot-blooded as hot-headed, temperamental, impulsive: quick to flare up and act before thinking. This is the shape that directly modifies a noun; to state it as a sentence, use 血の気が多い. A less common rendering.
• 血の気が多いちのけがおおい
  expression, i-adjectiveThe plain form of the same phrase, used when stating it as a sentence: hot-blooded as hot-headed, temperamental, impulsive. Like its noun-modifying counterpart 血の気の多い, it is a less common rendering.
• 血気盛んけっきさかん
  na-adjectiveHot-blooded as passionate and full of vitality rather than quick-tempered; it describes someone brimming with energy and passion, often a young person. A less common choice, and not the word for a short temper.

For hot-blooded meaning hot-headed, temperamental, or impulsive, use 「血の気が多い」, or 「血の気の多い」 when it directly modifies a noun; for hot-blooded meaning passionate and full of vitality, use 「血気盛ん」 — all three are less common choices.

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

• 血の気の多いちのけのおおいhot-blooded
• 血の気が多いちのけがおおいhot-blooded
• 血気盛んけっきさかんpassionate