/ ˈtruːθfl; NAmE / adjective
1.
truthful (about sth) ( of a person ) saying only what is true
SYN honest :
They were less than truthful about their part in the crime.
Are you being completely truthful with me?
2.
( of a statement ) giving the true facts about sth :
a truthful answer
OPP untruthful
► truth·ful·ly / -fəli; NAmE / adverb :
She answered all their questions truthfully.
► truth·ful·ness noun [ U ]