Spleenful \Spleen"ful\, a. Displaying, or affected with, spleen; angry; fretful; melancholy. [1913 Webster] Myself have calmed their spleenful mutiny. --Shak. [1913 Webster] Then rode Geraint, a little spleenful yet, Across the bridge that spann'd the dry ravine. --Tennyson. [1913 Webster]