1. incapable of being erred; infallible; not liable to mistake or error
Usage: rare or archaic; largely superseded by 'infallible' in modern usage

Examples

• The scholar claimed to possess an inerrable method for solving complex equations.
• Medieval theologians debated whether any human authority could be truly inerrable.
• Her inerrable judgment in matters of art made her a trusted advisor.
• The ancient texts were not considered inerrable by modern historians.
• He approached the problem with an inerrable confidence that proved justified.