1. 脾气坏的;易怒的
If you describe someone as splenetic, you mean that they easily become very angry about things.

1. very irritable

e.g. bristly exchanges between the White House and the press
he became prickly and spiteful
witty and waspish about his colleagues

Synonym: bristlypricklywaspish

2. of or relating to the spleen

Synonym: spleniclienal