taciturn

Habitually untalkative. synonym: laconic.

Characterized by reserve or a lack of expression.

Silent or reserved in speech; saying little; not inclined to speak or converse.

Synonyms Mute, Dumb (see silent), reserved, uncommunicative, reticent.

Habitually silent; not given to converse; not apt to talk or speak.

Silent; temperamentally untalkative; disinclined to speak.

habitually reserved and uncommunicative