indemonstrable
indemonstrable — adjective
- indemonstrablepositive
- more indemonstrablecomparative
- most indemonstrablesuperlative
1. not possible to prove true, because the evidence or logical reasoning needed is
not possible to prove true, because the evidence or logical reasoning needed is not available
Soraya argued that basic moral beliefs are indemonstrable since they rest on values, not facts.
predicative: be + indemonstrable + since-clause
Devika could not prove her claim about the old temple; the facts were indemonstrable long ago.
Erik called the theory an indemonstrable assumption that no test could ever confirm or refute.
The judge ruled that the defendant's account was indemonstrable since no records or witnesses remained.
- unprovable
identical in meaning but much more common; 'unprovable' is neutral in register while 'indemonstrable' is markedly formal
- unverifiable
focuses on the inability to check or test a claim rather than to prove it logically; common in scientific contexts
- unsubstantiated
means lacking supporting evidence, but does not imply that proof is impossible in principle — only that it has not been provided yet
- demonstrable
direct opposite; a claim that can be shown to be true through evidence or reasoning
- provable
more common synonym of demonstrable; neutral register
- verifiable
can be checked or tested for truth
文法句型
it + be + indemonstrable + that-clause
noun + be + indemonstrable
indemonstrable + noun
用法筆記
Frequently found in academic writing about philosophy, logic, law, or mathematics. The word is far less common than its opposite demonstrable. A claim that is indemonstrable cannot be proved in principle, not merely because the evidence happens to be missing.