What is "burdenless"

Usage examples of "burdenless".

But the crates were cracked open, the dollies burdenless, the torpedo racks bare.

Presumably crouched on the life-jacket at the back of his neck, the monkey was burdenless and undemanding, almost non-existent.

As the Consent chooses to enter a virtual space and achieve a burdenless immortality, the bipeds, unpredatored, invent a predator.

I looked away, abandoning it, and went down the dark streets cartless, burdenless, a man whose life had found and lost meaning in the same instant.

But the crates were cracked open, the dollies burdenless, the torpedo racks bare.