no one home
- emptyHolding nothing inside
- vacantWithout an occupant
- absentNot in attendance
- desertedLeft behind, uninhabited
- abandonedLeft behind completely
hollow · lights out · doorbell · knocked · silence · echoing · ghostly · vacant stare · nobody · missing · gone · void · shell · blank · unoccupied · crickets · departed · oblivious
occupancy/presence
no one homeoccupied
Currently in use
full house · inhabited · crowded · bustling · packed
MENTAL ALERTNESS (idiomatic)
no one homesharp as a tack
Extremely intelligent and alert
all there · quick-witted · sharp · bright · alert