unbound

Things that are free, rather than attached or restrained, are unbound. You prefer your to wear your hair in a tight ponytail to keep it off your face, while your best friend likes her hair unbound.

If you untie your pet goats so they can roam free, they'll be unbound. It's even more common to use this adjective figuratively, to mean "free" or "unconstrained," like little kids who are unbound from conventional ideas of politeness, or students in the summer, unbound from school, who are free to sleep late.

Definitions of unbound
  1. adjective
    not restrained or tied down by bonds
    Synonyms:
    unchained, unfettered, unshackled, untied
    not bound by shackles and chains
    untethered
    not confined or restricted with a tether
    free
    able to act at will; not hampered; not under compulsion or restraint
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    Antonyms:
    bound
    confined by bonds
    chained, enchained
    bound with chains
    fettered, shackled
    bound by chains fastened around the ankles
    furled, rolled
    rolled up and secured
    pinioned
    bound fast especially having the arms restrained
    tethered
    confined or restricted with or as if with a rope or chain
    tied, trussed
    bound or secured closely
    wired
    tied or bound with wire
    unfree
    hampered and not free; not able to act at will
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  2. adjective
    not secured within a cover
    “an unbound book”
    Synonyms:
    looseleaf
    being or having leaves that can be easily removed or rearranged
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    Antonyms:
    bound
    secured with a cover or binding; often used as a combining form
    brassbound
    having trim or fittings of brass
    cased
    enclosed in a case
    half-bound
    (of books) having the back bound in one material and the sides in another
    paperback, paperbacked
    (of books) having a flexible binding
    well-bound
    (of books) having a sturdy and attractive binding
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  3. adjective
    not held in chemical or physical combination
    Synonyms:
    free
    unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion
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