lost to the world

Utterly mentally absent

Lost to the world describes someone so absorbed in sleep, thought, or activity that they're oblivious to their surroundings.

A person lost to the world might be deeply asleep, engrossed in a book, or entranced by music: She was lost to the world, headphones on, staring out the train window.

The phrase suggests temporary disconnection from ordinary awareness.

Related

flow state · in the zone · absent · unaware · checked out · trance · insensible · deserted · abandoned · neglected · reverie · immersion · heedless · ignorant · dissociation · rapture · detachment · inattentive

Opposites
awareness/consciousness

lost to the worldwide awake

Totally alert and attentive

alert · aware · conscious · awake · lucid

attentiveness to others

lost to the worldtuned in

Attentive and aware

engaged · responsive · in the moment · connected · all ears

engagement/presence

lost to the worldin the moment

present · engaged · attentive · tuned in · plugged in

Family

lost, lose, loses, losing, loser, losers, losses, world, worlds

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G