Dissimulating is the act of concealing one's true intentions or feelings by pretending, lying or deceiving. Its antonyms, however, are the words that describe the opposite, such as openness, honesty, transparency or authenticity. Openness represents the quality of being frank, receptive and willing to share one's thoughts and emotions with others. Honesty is the trait of telling the truth, without any intent to deceive or manipulate. Transparency is the quality of being easily understood or seen through, and free from deceit or obscurity. Authenticity is the state of being genuine, original and true to oneself, without any pretense or affectation. Thus, using these antonyms for dissimulating will help to foster genuine relationships built on trust and respect.