Indeterminable :: Indeterminable (a.) Not determinable; impossible to be determined; not to be definitely known, ascertained, defined, or limited..
Indeterminate :: Indeterminate (a.) Not determinate; not certain or fixed; indefinite; not precise; as, an indeterminate number of years..
Indetermination :: Indetermination (n.) Want of determination; an unsettled or wavering state, as of the mind..