Choose the perfect synonym or antonym for the word

Optical

Relating to sight or the behavior of light.

Synonyms:

The optical illusion left everyone in awe.She specializes in optical physics in her research.New optical fibers improve internet speeds drastically.

Derived from Latin opticus, and Greek optikos, concerning sight, from optos meaning visible, seen.

3 mentions per 1 million words

Moderate

Hint: Frequency according to COCA