Definition of silent treatment in English:

silent treatment

noun

  • 1Treatment with silence, rather than comment; the tactic of ignoring (an issue, accusation, etc.) instead of responding or reacting to it (now rare).

  • 2(With the) the stubborn refusal to talk to or deal with a person, especially because of a recent argument or disagreement; chiefly in "to give (a person) the silent treatment", "to get the silent treatment".

Origin

Early 19th century; earliest use found in Edinburgh Journal Science.