unburdened (Adjective) — Not burdened with difficulties or responsibilities. ex. "unburdened by an overarching theory"
unburdened (Adjective) — Not encumbered with a physical burden or load. ex. "The regulations apply generally to every motor vehicle which has an unburdened weight of more than 3 tons"
unburdened (Verb) — Free or relieve (someone) of a burden.
unburdened (Verb) — Take the burden off; remove the burden from. ex. "unburden the donkey"