Try Missing. It can also depend on the context, if you can use present tense, try abandon.
He was supposed to be there at seven, but he was running behind. In the hurry to evacuate, his laptop was left behind.
The opposite of "left behind" is "taken along" or "brought along." It implies that something or someone is not forgotten or abandoned, but instead brought with you.
seventy
It can be, when whatever something is behind is named (e.g. behind the door). Without an object, behind is just an adverb (e.g. The book was left behind).
We saw it as from what heavy seven letter word can you take away two and have eight left? . . . . . . . . . . . . . . .. . . . . . .weights
Bequest, testate
omitted
Straight out from the middle of the vessel on the left side.
to stay behind or to be left
Archaeology
The past tense of "leave behind" is "left behind."
fake