← BackshareGuessspleeny/ˈspliːni/adjectiveIrritable, bad-tempered, or spiteful.He was feeling spleeneny after a long, stressful day at work.Don't be so spleeneny; try to see the bright side.The spleeneny letter she wrote was full of angry accusations.SynonymsirritablecrankygrumpyAntonymscheerfulpleasant