The correct antonym for CANDOUR is Evasiveness.
Candour refers to the quality of being open, honest, and frank in speech or expression. It implies a straightforwardness and a lack of deceit or pretense. Someone exhibiting candour speaks their mind clearly and directly, without reservation or hidden motives, often even when the truth might be uncomfortable. It is a highly valued trait in communication, fostering trust and clarity in relationships and discussions.
Conversely, Evasiveness is the deliberate act of avoiding directness, especially when responding to questions or making statements. It involves being vague, indirect, or deliberately ambiguous, often to avoid confronting an issue, revealing the full truth, or taking responsibility. This behavior stands in stark contrast to candour, as it seeks to obscure rather than clarify, creating ambiguity and potentially undermining trust. While 'Honesty,' 'Openness,' and 'Sincerity' are all synonyms or closely related concepts to candour, 'Evasiveness' represents its direct opposite, making it the appropriate choice for an antonym.