WordWeb Online

1. Not burdened with difficulties or responsibilities
   "unburdened by an overarching theory"
    
2. Not encumbered with a physical burden or load
   "The regulations apply generally to every motor vehicle which has an unburdened weight of more than 3 tons";
   - burdenless, unladen

1. Free or relieve (someone) of a burden
    
2. Take the burden off; remove the burden from
   "unburden the donkey";
   - disburden

See also: unencumbered

Type of: remove, take, take away, withdraw

Antonym: burdened, burthen

Encyclopedia: Unburden