The phrase "be forthcoming" essentially means to be open, honest, and transparent in conversation or communication. There are several synonyms for this phrase, such as forthcomingness, candor, frankness, honesty, openness, transparency, and straightforwardness. All these words convey a sense of sincerity and authenticity in communication, where the speaker shares their thoughts and ideas without holding anything back. Being forthcoming in communication is an essential aspect of building trust, especially in professional or personal relationships. Using these synonyms will help individuals express themselves more effectively and accurately, thereby fostering better understanding and more meaningful communication.