adverb
- in a manner that cannot be demonstrated, proven, or shown to be true
Usage: formal; rare
Examples
- The claim remained indemonstrably vague despite repeated requests for clarification.
- His assertion was indemonstrably based on personal belief rather than empirical evidence.
- The theory, though intellectually appealing, was indemonstrably supported by the available data.
- She argued that certain truths are indemonstrably self-evident to the human mind.