1. 无拘无束 無拘無束：无中生有 無中生有 fabricate | 无拘无束 無拘無束 unconstraint | 无所不知 無所不知 omniscient,know it all
2. 自愿：unconstrained /不受拘束的/不受强制的/自由的/ | unconstraint /自愿/ | uncontaminated /洁净/
unconstraint
noun
1. the trait of lacking restraint or control
reckless freedom from inhibition or worry
e.g. she danced with abandon
Synonym: abandon wantonness