crystal clear

1 easily seen through drank thirstily of the crystal-clear water from the spring Synonyms crystal, clear, crystalline, limpid, liquid, lucent, pellucid, see-through, transparentRelated Words colorless, uncolored; diaphanous, lucid, semitranslucent, semitransparent, sheer, translucent, transparentized; glassy, vitreousNear Antonyms colored, dark, glazed, tinted; filmy, foggy, hazy, misty, nebulous, smoky (also smokey); dense, muddy, murky, turbidAntonyms cloudy, opaque

2 not subject to misinterpretation or more than one interpretation what could be more crystal-clear than an emphatic “No!” Synonyms apparent, bald, bald-faced, barefaced, bright-line, broad, clear-cut, clear, decided, distinct, evident, lucid, luculent, luminous, manifest, nonambiguous, obvious, open-and-shut, palpable, patent, pellucid, perspicuous, plain, ringing, straightforward, transparent, unambiguous, unambivalent, unequivocal, unmistakableRelated Words cognizable, cognoscible, comprehendible, comprehensible, digestible, fathomable, graspable, intelligible, knowable, understandable; self-evident, self-explanatory; clean-cut, simple, tidy, uncomplicated; overt, undisguised; appreciable, perceptible, recognizable, sensible, tangible; discernible (also discernable), noticeable, observable, visible; black-and-white, explicit, trenchant, well-defined; clean, decipherable, fair, legible, readableNear Antonyms incomprehensible, indecipherable, unfathomable, unintelligible, unknowable; impalpable, imperceptible, inappreciable, indiscernible, insensible; cloudy, gauzy, gray (also grey), hazy, imprecise, indefinite, indeterminate, misty, murky, nebulous, noncommital, sketchy, slippery, subtle, vague; illegible, undecipherable, unreadableAntonyms ambiguous, clouded, cryptic, dark, enigmatic (also enigmatical), equivocal, indistinct, mysterious, nonobvious, obfuscated, obscure, unapparent, unclarified, unclear, unclouded