The scientist published a paper about an undescribed species found in the rainforest.

The artist tried to capture the sunset's undescribability in every brushstroke.

Even after hours of reflection, she struggled to convey the undescribableness of the sunset.

The night sky over the remote mountain village was undescribably beautiful, filled with a million stars that seemed to hang just for us.

Standing at the cliff's edge, she felt an undescribable mix of fear and freedom.