Found 2 items, similar to truthfulness.
English → English (WordNet) Definition: truthfulness truthfulness n : the quality of being truthful [ant: untruthfulness]
English → English (gcide) Definition: Truthfulness Truthful \Truth"ful\, a. Full of truth; veracious; reliable. -- Truth"ful*ly, adv. -- Truth"ful*ness, n. [1913 Webster]