Express : convey (a thought or feeling) in words or by gestures and conduct. Hinder : make it difficult for (someone) to do something or for (something) to happen. Flourish : (of a living organism) grow or develop in a healthy or vigorous way, especially as the result of a particularly congenial environment. Stagnate : (of water or air) cease to flow or move; become stagnant. Stymie : prevent or hinder the progress of.