The term 'hot-blooded' refers to someone who is passionate, impulsive, and driven by their emotions. The antonyms for this term are 'cold-blooded,' 'calm,' 'collected,' 'unemotional,' and 'detached.' Cold-blooded refers to someone who is not easily swayed by emotions or passionate outbursts. Calm and collected individuals are able to stay composed and level-headed even in stressful situations. Unemotional people are often seen as "stone-faced" or lacking expression, while detached people are detached from their own emotions as well as those of others. Overall, the antonyms for hot-blooded all suggest the opposite characteristics to someone who is driven by their emotions.