Released from ties, obligations, or constraints upon one's action. Often used with reference to love and marriage; sometimes also (chiefly Scottish)…

Unbound, unattached. With prep.: Free from or of; released or disengaged from; unattached to. Obsolete.

figurative. Unconfined, unconstrained; not bound by any engagement, vow, etc.

Of a person: not bound or constrained (to do something); not under an obligation, not beholden.

Able to do as one pleases owing to a lack of responsibilities or commitments; now esp., free to relocate or travel without concern or constraints…

Not associated with or applicable to a specific group, category, etc.; unaffiliated, independent; free-ranging, unconstrained.