This is the 7552nd most frequent Chinese word.
诚实
Honesty; being truthful and sincere.
诚实 is used here as a noun to signify the virtue of honesty.
诚实是为人处世的重要准则。
Honesty is an important principle in dealing with people.
诚实 is used as an adjective to describe the adjective clause 'honest attitude'.
他以诚实的态度回答了所有的问题。
He answered all the questions with an honest attitude.
诚实 is employed as an adverbial modifier to describe the action 'express honestly'.