The meaning of OPAQUE is blocking the passage of radiant energy and especially light : exhibiting opacity . How to use opaque in a sentence. Compare transparent, translucent & opaque with definitions & examples. Chart comparing translucent vs transparent included for quick & easy reference. Opaque means not allowing light to pass through, or not clear or transparent. It can also refer to glass, costume, or a mineral. Learn more about its origin, pronunciation, and related words. Explore the definition of the word " opaque ," as well as its versatile usage, synonyms, examples, etymology, and more.
