impenetrability Antonyms

penetrability accuracy precision plainness perviousness perspicuity openness lucidness lucidity sharpness simplicity artless ease straightforwardness obviousness acknowledgement perspicuousness unambiguity transparency sureness limpidity honesty clearness clarity certainty candor brightness bluntness authenticity articulateness comprehensibility confidence glassiness explicitness exactness distinctness directness definition definiteness conviction basic simplicity