He is a cold fish and never shows any emotion.
cold fish
idiomA heartless individual; a person lacking empathy and emotion.
Origin
first recorded 17th c.Coined by William Shakespeare in 1611, see quotations.
I tried to be friendly, but my new boss is such a cold fish that he barely looked at me.
Despite his reputation as a brilliant strategist, his colleagues often found him to be a cold fish who remained entirely indifferent to their personal struggles.
- 01
a cold day in July
The time of occurrence of an event that will never happen.
- 02
big fish
An important person.
- 03
big fish in a small pond
One who has achieved a high rank or is highly esteemed, but only in a small, relatively unimportant, or little known location or organization.
- 04
bigger fish to fry
A much more pressing issue to attend to.
- 05
blow hot and cold
To behave inconsistently; to vacillate or to waver, as between extremes of opinion or emotion.
- 06
catch a cold
To contract a cold.
- 07
cold cash
Money, regarded as an incentive that can override any doubts or ethical concerns.
- 08
cold chills
Feelings of fear.