adjective

annoyed or irritated and quick to take offence at petty things.

ask writers for more than a second draft and they get huffy

irritable,irritated,annoyed,cross,grumpy,huffish,bad-tempered,crotchety,crabby,crabbed,cantankerous,curmudgeonly,moody,petulant,miserable,morose,sullen,surly,churlish,touchy,testy,tetchy,crusty,snappish,waspish,prickly,snappy,cranky,narky,narked,miffed,ratty,eggy,shirty,like a bear with a sore head,whingy,soreheaded,peckish,snaky,miffy,pissed off