live under a rock

English

live under a rock (third-person singular simple present lives under a rock, present participle living under a rock, simple past and past participle lived under a rock)

(figurative) To be unaware of or be oblivious to common knowledge; to be isolated from knowledge of current events.
Of course I know about Looney Tunes, SpongeBob SquarePants, and The Simpsons. I do not live under a rock.
(Should we delete⁽⁺⁾ this sense?) (figurative) To live in isolation.
Roberta's wife attempted to live under a rock to avoid contracting diseases from her friends and family.

to be isolated from knowledge of current events

Chinese:
Mandarin: 坐井觀天／坐井观天 (zh) (zuòjǐngguāntiān)
Danish: leve under en sten
Finnish: kasvaa tynnyrissä
French: vivre dans une grotte (fr)
German: hinterm Mond leben
Hungarian: barlangban él, a világtól elzárva/elzártan/elvonultan/elvonulva/elszigetelve/elszigetelten/távol él
Japanese: please add this translation if you can
Korean: please add this translation if you can
Norwegian:
Bokmål: leve under en stein

Nynorsk: leve under en stein, leva under en stein
Polish: nie być na bieżąco
Portuguese: viver debaixo de uma pedra
Russian: please add this translation if you can
Spanish: please add this translation if you can
Swedish: leva under en sten
Ukrainian: please add this translation if you can