the.com/taciturn
Personality set to mute, with no apology for the silence.
means Habitually reserved and sparing with words, often by temperament rather than mood.
from From Latin tacitus, silent — same root as tacit, that quiet understanding nobody bothered to say aloud.
Not shyQuietness by nature, not by nerves.
Word cousinShares roots with tacit and reticent.
Built-in traitThe -urn suffix implies a lasting disposition.