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"truthful" is also used as a crossword clue. If that's what you saw, the answer is often honest (6 letters).
Definitions
expressing or given to expressing the truth
Word origin
From truth + -ful. Piecewise doublet of trothful, from Middle English trouþeful.
Used in a sentence
“someone's truthful nature”
“Mr. Musk was not being truthful, Mr. Rubio said. What about the more than 1,500 State Department officials who took early retirement in buyouts?”
“He drew a truthful portrait of the prince.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Honest”8 letters
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