live under a rock

Clueless about everything

To live under a rock is to be oblivious to common knowledge or current events that most people know about.

The phrase usually appears as a question expressing disbelief at someone's ignorance: Have you been living under a rock?

The image suggests someone so isolated from society that even widely known information hasn't reached them.

Related

blissfully unaware · uninformed · not paying attention · head in the sand · asleep at the wheel · unexposed · sheltered · behind the times · born yesterday · disengaged · detached · unaware · disconnected · blind spot · ignorant · ivory tower · hermit · insular

Opposites
awareness of current events and culture

live under a rockhave one's finger on the pulse

Be well-informed about developments

Family

live, lives, lived, living, alive, lively, livelihood, liver, outlive

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G