- not transparent or translucent; impenetrable to light; not allowing light to pass through.
- not transmitting radiation, sound, heat, etc.
- not shining or bright; dark; dull.
- hard to understand; not clear or lucid; obscure: The problem remains opaque despite explanations.
- dull, stupid, or unintelligent.
- something that is opaque.
- a coloring matter, usually black or red, used to render part of a negative opaque.
- to cover up blemishes on (a negative), especially for making a printing plate.
- to cause to become opaque.
- not transmitting light; not transparent or translucent
- not reflecting light; lacking lustre or shine; dull
- not transmitting radiant energy, such as electromagnetic or corpuscular radiation, or sound
- hard to understand; unintelligible
- unintelligent; dense
- an opaque pigment used to block out particular areas on a negative
- to make opaque
- to block out particular areas, such as blemishes, on (a negative), using an opaque