Definition of "unladen" []

• Not carrying anything; unburdened. (adjective)
• Past participle of unlade (verb)

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• "Currently healing from a blow to the face, Frank is now a captive of a new group of castaways because he couldn't answer one simple question: What ... is the air-speed velocity of an unladen swallow?"
• "It then recommends you ask, "Estimated average cruising airspeed of an unladen European swallow" instead."
• "It also doesn't know the speed of an unladen swallow, but at least it recognizes where it came from."