n. 25B6; adjective
opaque glass : NON-TRANSPARENT, cloudy, filmy, blurred, smeared, smeary, misty, dirty, muddy, muddied, grimy.
the technical jargon was opaque to her : OBSCURE, unclear, mysterious, puzzling, perplexing, baffling, mystifying, confusing, unfathomable, incomprehensible, unintelligible, impenetrable, hazy, foggy; informal as clear as mud.
transparent, clear.