很 + 安静 / 安静 + 的 + Noun
安静 (ānjìng) is an adjective meaning "quiet," "peaceful," or "calm." It describes an environment, atmosphere, or person that is free from noise or disturbance. It can be used as a predicate, modifier, or complement in a sentence.
图书馆里很安静,适合看书。
Túshūguǎn lǐ hěn ānjìng, shìhé kànshū.
The library is very quiet, suitable for reading.
孩子终于睡了,家里安静下来了。
Háizi zhōngyú shuì le, jiālǐ ānjìng xiàlái le.
The child finally fell asleep and the house quieted down.
她是个安静的女孩,不太爱说话。
Tā shì gè ānjìng de nǚhái, bù tài ài shuōhuà.
She is a quiet girl who doesn't talk much.