1. not restricted or limited; free to move or spread
2. not imprisoned or held captive

Examples

• The unconfined aquifer allows water to flow freely through the rock layers.
• Her unconfined enthusiasm for the project was infectious.
• The gas expanded rapidly in the unconfined space.
• After years in prison, he enjoyed his unconfined freedom.
• The unconfined flames spread quickly through the dry grass.
• She felt unconfined by traditional rules and expectations.
• The unconfined concrete mixture flowed easily into the mold.