opaque

But critics say the process can be opaque, and touches only a limited pool of applicants.

His heavy, nuanced songs and personal lyrics — from Alice in Chains’ “Rooster” to “Cut You in” and his four solo records — are multilayered, often willfully opaque and always powerful.

Any assessment of testing is always going to be inexact, based as it is on hints and snapshots of something necessarily opaque.

They’re both in their Bills uniforms and both have opaque helmet visors covering their eyes.

For all their behind-the scenes banter, the characters in “Wish You Were Here” remain to a degree opaque.