crystal clear (not comparable)

1. (idiomatic) Completely clear and understood.

   Reread through the manual until the instructions are crystal clear in your head.

   • 1945 August 17, George Orwell [pseudonym; Eric Arthur Blair], chapter 1, in Animal Farm: A Fairy Story, London: Secker & Warburg, OCLC 3655473 ↗:

     Is it not crystal clear, then, comrades, that all the evils of this life of ours spring from the tyranny of human beings?

2. (idiomatic) Visually clear, a sharp image, high acuity.

   The picture on this TV is crystal clear – you can see every grain of sand!

• pellucid
• plain as day

• German: glasklar
• Italian: chiarissimo
• Russian: криста́льно я́сный
• Spanish: claridad meridiana

• German: glasklar
• Italian: chiarissimo
• Russian: криста́льно чи́стый