Unconstrained and Unaided

Unconstrained adjective - Free from constraint.

Unaided and unconstrained are semantically related In some cases you can use "Unaided" instead an adjective "Unconstrained".

Unaided adjective - Carried out without aid or assistance.

Unconstrained and unaided are semantically related in independent topic. Sometimes you can use "Unconstrained" instead an adjective "Unaided", if it concerns topics such as liberated.