Free from constraint or stiffness; chiefly of or with reference to bodily posture or movements. Also transferred of manners or behaviour: Free…

Easy, unconstrained (in manner or address).

Not confused or constrained; free, at ease.

Of conduct, actions, etc.: Characterized by lack of ceremony or formality.

Of a person or his or her attributes. Characterized by ease of behaviour; affable, genial, courteous. Now rare.

Not starched; figurative free from stiffness.