The approach of multiple deadlines had put me in a truculent [ˈtrʌkjələnt] mood, and I could tell my colleagues were avoiding me.

truculent
adj [ˈtrʌkjələnt]

Truculent describes a person who is easily annoyed and eager to argue or fight. It can also describe the mood or attitude of such a person.

from Latin in the mid-16th century, trimming truculentus, a form of the Latin adjective trux, meaning “savage,” and keeping the word’s meaning... now typically describes the sort of person who is easily annoyed and eager to argue, or language that is notably harsh.

English