Meaning & use
Indeterminable
Last updated
Impossible to determine, calculate, or settle with certainty.
See it in a sentence
The exact cause of the fire remains indeterminable after the investigation.
The age of the ancient manuscript is indeterminable without further testing.
A note on using this word
Often confused with 'indeterminate'; 'indeterminable' stresses the impossibility of ever finding out, while 'indeterminate' simply means vague or unspecified.
Words with a similar meaning
unascertainableunknowable
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
determinablecertain
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