Apedia

Opaque Oh Payk Adjective Transparent Translucent Impenetrable Light Allowing

Front opaque /oh-PAYk/
Back adjective
1. Not transparent or translucent; impenetrable to light; not allowing light to pass through.
2. Not transmitting radiation, sound, heat, etc.
3. Not shining or bright; dark; dull.
4. Hard to understand; not clear or lucid; obscure: The problem remains opaque despite explanations.
5. Dull, stupid, or unintelligent.

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