mother

silent

with little or no sound; free from excitement, trouble, anxiety; gentle

without or with little sound

in the habit of saying little; not saying all that is known or felt

secretive, quiet

(having the habit of) hiding one's knowledge, feelings etc

uncommunicative

serious and strict; not kind; (of the weather, attacks of disease etc) strong, extreme; making great demands on skill, ability, patience etc

uncompromising, stern

(in the habit of) saying very little

uncommunicative

not communicative

shy, silent