In a cold-blooded manner.

Without sympathy, feeling or compassion; callous or heartless

A small, coiled, stainless steel wire placed in a kettle to attract limescale that would otherwise build up on the heating element.

the state of being cold-blooded

the state of being cold-hearted

To disrespect someone, especially by ignoring them.

plural of cold shoulder

(idiomatic) A deliberate act of disrespect; a slight or snub

(idiomatic) To deliberately slight or snub someone.

Of, pertaining to, or suffering from colic