truthfulness

UK: /ˈtruːθfʊlnɪs/

WordReference Random House Learner's Dictionary of American English © 2025

truth•ful /ˈtruθfəl/   adj. 

1. telling the truth, esp. as one's habitual behavior:
   a truthful child.
2. conforming to truth;
   corresponding with reality:
   a truthful portrait.

truth•ful•ly, adv. 
truth•ful•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

truth•ful  (tro̅o̅th′fəl), adj. 

1. telling the truth, esp. habitually:
   a truthful person.
2. conforming to truth:
   a truthful statement.
3. corresponding with reality:
   a truthful portrait.

• truth + -ful 1590–1600

truth′ful•ly, adv. 
truth′ful•ness, n. 
Synonyms

• 1. . honest, trustworthy; candid, frank.