Definition of Unintelligible

making no sense; not understandable

Examples of Unintelligible in a sentence

The babbling baby let out an unintelligible wail as she toddled down the hallway.  

Wearing a long turban and speaking a language that was unintelligible to the natives, the mysterious woman seemed to have appeared out of nowhere.  

Twins sometimes have a secret language only they understand that is unintelligible to others.  

The boy’s unintelligible handwriting looked like chicken scratch, causing him to receive poor grades in school.  

Names of pharmacy drugs are usually so long and confusing that they are unintelligible to others.  

Other words in the Mysterious & Unknown category:

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