V2 Vocabulary Building Dictionary



Definition: 1. impervious to light, making something impossible to see through clearly; 2. abstruse and hard to understand--unclear

Synonyms: nontransparent, blurred, murky, obscure, dull, hazy, incomprehensible, vague, abstruse, concealed

Antonyms: transparent, translucent, clear

Tips: Opaque comes from the Latin opacus, "dark." Light cannot pass through something opaque the way it can through something translucent. This first meaning of opaque is more common than the meaning of "difficult to understand." For this intended meaning, it's probably better to use the word "obscure" or, if it is very difficult to understand, "abstruse." The related noun opacity refers to the quality of being opaque.

Usage Examples:

The message was not intended to be opaque, but we couldn't understand it. (unclear, incomprehensible, abstruse)

The opaque curtains on her windows were meant to keep the light out. (non-transparent, dark)

She liked to wear opaque makeup rather than sheer colors. (nontransparent, thick)

The water was so full of pollutants that it had become opaque. (murky, hazy, nontransparent)

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