crabby vs bad-tempered

crabby and bad-tempered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
crabby	No	Yes	No	No
bad-tempered	No	Yes	No	No

As adjectives, crabby and bad-tempered are synonyms defined as:

Other synonyms of crabby include crabbed, cross, fussy, grouchy, grumpy, ill-tempered.

crabby (adjective)	bad-tempered (adjective)
annoyed and irritable	annoyed and irritable