American English

Definition of opaque adjective from the Oxford Advanced American Dictionary



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  1. 1 (of glass, liquid, etc.) not clear enough to see through or allow light through opaque glass opaque stockings
  2. 2(of speech or writing) difficult to understand; not clear synonym impenetrable The jargon in his talk was opaque to me. opposite transparent
See the Oxford Advanced Learner's Dictionary entry: opaque