任意

Adverb

 * 1) as one pleases; as one likes; whatever one wants

Adjective

 * 1)  arbitrary; willful

Adjective

 * 1) arbitrary, as one wants or thinks
 * 2) free, up to a person, according to their will, voluntary

Noun

 * 1) any choices, arbitrary selections
 * 2) free will

Derived terms

 * : facultativity