cold-blooded

1. Having an unregulated body temperature; ectothermic.

   having cold blood (in animals whose body temperature is not internally regulated)

2. (figuratively)Lacking emotion or compunction.

   kaltblütig

   хладнокро́вныйxladnokróvnyj, бесчу́вственныйbesčúvstvennyj

   холоднокро́внийxolodnokróvnyj

   without compunction or human feeling

3. Of a type of horse: tall and muscular, usually good-natured and suitable for heavy work.

4. Of an engine or vehicle: difficult to start; runs poorly until warmed up.

regular