indeterminable

The adjective indeterminable describes something that can't be known for sure, like what grade you would’ve gotten on a paper you never turned in.

To determine is to calculate something, make a final decision, or to be sure. Something that's indeterminable is none of these — it’s not able to be determined. Maybe you need more information or better math skills. The grade you would’ve gotten on a paper you didn’t write is indeterminable, but if you’re lucky your teacher will give you an extension. Then that shining “C” is all yours!

Definitions of indeterminable
1

adj not capable of being definitely decided or ascertained

Synonyms:
undeterminable
incalculable
not capable of being computed or enumerated
indeterminate
not capable of being determined
unascertainable, undiscoverable
not able to be ascertained; resisting discovery
unpredictable
unknown in advance
indeterminate, undetermined
not precisely determined or established; not fixed or known in advance
Antonyms:
determinable
capable of being determined or limited or fixed
calculable
capable of being calculated or estimated
ascertainable, discoverable
capable of being ascertained or found out
definable
capable of being defined, limited, or explained
judicable
capable of being judged or decided
show more antonyms...

adj incapable of being definitely ascertained

Synonyms:
incalculable
not capable of being computed or enumerated

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