kaltblütiger

Kaltblütiger is the comparative form of the German adjective kaltblütig, meaning cold-blooded. It denotes a higher degree of cold-bloodedness or calculation. The word is formed from kalt (cold) + Blut (blood) with the adjectival suffix -ig and the comparative ending -er. In usage it can apply to both literal biological descriptions and figurative character assessments.

In biological contexts, kaltblütig describes poikilothermic animals that do not regulate their body temperature internally. In modern zoological terminology, terms such as wechselwarm or ektotherm are often used for precision, but kaltblütig may still appear in non-technical or literary writing. When used metaphorically, kaltblütig conveys emotional distance or ruthlessness, as in phrases like kaltblütiger Täter (a more cold-blooded killer) or ein kaltblütiges Vorgehen (a cold-blooded approach).

Grammatical notes include that kaltblütiger is the masculine nominative singular form; the feminine would be kaltblütigere, and the neuter kaltblütigeres, with corresponding inflections as the noun it modifies changes. The related noun Kaltblütigkeit refers to the property or state of being cold-blooded. In English translations, kaltblütiger is rendered as "cold-bloodier" or, more naturally, "more cold-blooded," depending on context. See also warmblütig, the antonym used for warm-blooded.