indeterminable
adjective
[ ɪndɪˈtəːmɪnəb(ə)l ]
• not able to be definitely ascertained, calculated, or identified.
• "a woman of indeterminable age"
Origin:
late 15th century (in the sense ‘unable to be limited’): from late Latin indeterminabilis, from in- ‘not’ + determinabilis (see determinable).
