What is the word 'honest' when translated from English to Japanese?

素直な (su na o na) is Japanese for 'honest' meaning 'frank, outright' (in adjective form). 誠実な (sei ji tsu na) is Japanese for 'honest' meaning 'sincere, truthful'. 素顔な (su ga o na) also can be used for 'honest' meaning literally 'with an unmasked face, wholehearted, frank'.

The Word 正直 (shoujiki) may also be used.