candid

characterized by directness in manner or speech; without subtlety or evasion

White.

Lat candēre - shine

“Hippias assured him there was something the matter with him. "Nothing, uncle! nothing!" said Richard, looking fiercely candid.”

— George Meredith, Complete Project Gutenberg Works of George Meredith

“Over a ten-year period, he made 30 records for a number of labels (Atlantic, Candid, Columbia, Impulse and others).”