say it: TROOTH-fuhl
truthful is an adjective meaning "expressing or given to expressing the truth". It carries 2 recorded senses.
expressing or given to expressing the truth
“a true statement”
“gave truthful testimony”
“a truthful person”
conforming to truth
“I wouldn't have told you this if it weren't so”
“a truthful statement”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for truthful come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.