Synonyms of 'crusty'
(of a person's manner) abrupt and rather rude
She was definitely short with me.
I'm a bit short-tempered sometimes.
irritable or bad-tempered
retired military men with splenetic opinions
bad-tempered and rude
He behaves in a surly and rude manner towards me.
irritable or touchy
Ben's getting a little testy in his old age.
cross, irritable, or touchy
You always get tetchy when you're hungry.
easily upset or irritated
She is very touchy about her past.
Thesaurus for crusty from the Collins English Thesaurus