Splenetic, a.
Etymology: [L. spleneticus: cf. F. splénétique. See Spleen.]
Affected with spleen; malicious; spiteful; peevish; fretful. "Splenetic guffaw." G. Eliot. You humor me when I am sick; Why not when I am splenetic Pope.
Syn. -- Morese; gloomy; sullen; peevish; fretful.
1 other Webster entry under this spelling
Splenetic, n.
A person affected with spleen.
Shades of meaning
Fernald has no entry of its own for splenetic; he lists it under morose.
He lists it without comment; the entries above explain its neighbors.