crystal clear, be

Idioms

Also, be clear as crystal. Be easy to understand, have a very obvious meaning. For example, The directions for installing the door are crystal clear, or Her intentions are clear as crystal. Allusions to crystal's very high degree of transparency have been made since the 15th century.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023