Unfettered.

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a. 1699.  

        Sedition was his Drift, and he could ne’r
Persue that game, unlesse he footloose were.
Jas. Beaumont, ‘Psyche’ (1702), cxlviii. (N.E.D.)    

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1873.  All of my friends who were “footloose” had the “Arizona fever,” and “wanted to know, you know, just the truth about the matter,” as I had traveled directly through the diamond district.—J. H. Beadle, ‘The Undeveloped West,’ p. 669 (Phila., &c.).

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