irrefrangible

[ir-i-fran-juh-buhl]

adjective

1. not to be broken or violated; inviolable.

   an irrefrangible rule of etiquette.

2. incapable of being refracted.

irrefrangible

/ ˌɪrɪˈfrændʒəbəl /

adjective

1. not to be broken or transgressed; inviolable

2. physics incapable of being refracted

Other Word Forms

• irrefrangibility noun
• irrefrangibleness noun
• irrefrangibly adverb

Word History and Origins

Origin of irrefrangible¹

First recorded in 1710–20; ir- ² + refrangible

Example Sentences

This inconvertibility of yellow fever with other diseases is absolute, and affords irrefrangible evidence of the specificity of that germ or poisonous principle which produces it.

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Related Words

• compelling 
• convincing 
• decisive 
• indisputable 
• irrefutable 
• irrevocable 
• precise 
• unambiguous 
• undeniable 
• unmistakable