undeceivable

He seemed to have an intuitive perception of the dark side of her character; and she to feel a revolting awe of his undeceiving, undeceivable sagacity.

He stands undeceivable before us, and takes our lives precisely for what they are worth.

The great, the amazing, the undeceivable Cleek!

The great, the amazing, the undeceivable man, Cleek.

He had stood still before her during these last words, and now sat down again, taking her hands and looking with his undeceivable gaze into her face.