1Lack of honesty; being untruthful or dishonest. Can be used as a noun or as a quasi-adjective (e.g., 'dishonest').
彼の説明には不正直さが感じられた。
There was a sense of dishonesty in his explanation.
不正直な行為は信頼を失う原因になる。
Dishonest behavior can be a cause of losing trust.
子どもに不正直なことをすると叱るべきだ。
You should scold a child if they act dishonestly.