The word "un-candidnesses" refers to a lack of honesty or openness in communication. Synonyms for this word include deceitfulness, insincerity, deception, falsehood, duplicity, and disingenuousness. These terms all carry a negative connotation and suggest that the person who is un-candid is not trustworthy or straightforward in their interactions with others. Other synonyms for this word include evasiveness, obfuscation, equivocation, and prevarication. These terms suggest that the person who is un-candid is deliberately trying to avoid answering questions or providing clear information, often in order to hide something or protect their own interests.