Bravo, who has had several run-ins with the WICB in the past, made the comments following the West Indies triumph in the World T20 in India.
"Too much times people come down on the players. They questioned our commitment, they questioned whether we were really committed to West Indies cricket or is it just the money. A lot of people don't understand the things we go through as players dealing with our board. It is the most unprofessional board in the world to me," Bravo was quoted as saying during a Skype interview with CNC3, a television network based out of Trinidad & Tobago.
Bravo said: "I'm not surprised by the president's tweet, to be honest, because it is expected of him. He is someone very immature. Two years ago when we had the problems on the India tour, (Kieron) Pollard and myself had been blatantly victimised for whatever reason. That is their way of dealing with situations. They are very small-minded people, especially the president as I said before. There is nothing much he can do again."
Regarding the West Indies' T20 captain, Bravo said, "Sammy spoke from his heart. There is nothing wrong with Sammy's speech and I support Darren Sammy 100%.
Bravo was pessimistic about a resolution being reached between the West Indies players and the WICB in the near future.