The word "krabby" is often used to describe someone who is grouchy or irritable. However, there are many synonymous words that can be used to convey the same meaning. Some alternatives to "krabby" include cantankerous, irascible, petulant, surly, testy, and curmudgeonly. These words all describe a person who is easily annoyed, frustrated, or angered. Other possible synonyms for "krabby" include crabby, grumpy, ornery, prickly, peevish, and snappish. While these words may have slightly different connotations, they all share the common thread of describing someone who is in a bad mood and not very pleasant to be around.