1) Annoyed and irritable 2) Apt to snap 3) Bad-tempered 4) Cantankerous 5) Crabbed 6) Cross 7) Curmudgeonly 8) Exclusively Saxon word 9) Exclusively Anglo word 10) Fussy 11) Grouchy 12) Grumpy 13) Ill-natured 14) Ill-tempered 15) In a foul mood 16) In an unpleasant mood 17) Inclined to complaining 18) Irritable Found on https://www.crosswordclues.com/clue/crabby
Crab'by (-bȳ) adjective Crabbed; difficult, or perplexing. 'Persius is crabby , because ancient.' Marston. Found on http://www.encyclo.co.uk/webster/C/179