松开，解开( untie的过去式和过去分词 )；解除，使自由；解决；

1. not bound by shackles and chains

    Synonym: unchainedunfetteredunshackled

2. with laces not tied

    e.g. teenagers slopping around in unlaced sneakers

    Synonym: unlaced

3. not tied

    Synonym: unfastened