1) Caked 2) Covered 3) Crispy 4) Crunchy 5) Crusted 6) Crust like 7) Curmudgeonly 8) Encrusted 9) Flaking 10) Gruff 11) Grumpy 12) Scaly 1) Cantankerous 2) Covered 3) Crusted 4) Crustlike 5) Curmudgeon-like 6) Encrusted 7) Gruff 8) Harsh 9) Having a surly demeanor 10) Like a baguette 11) Like a curmudgeon 12) Like good bread 13) Like Italian bread 14) Like kaiser rolls 15) Like some bread 16) Rough and outspoken 17) Rough in character 
• (a.) Having a hard exterior, or a short, rough manner, though kind at heart; snappish; peevish; surly. • (a.) Having the nature of crust; pertaining to a hard covering; as, a crusty coat; a crusty surface or substance.
Aggregate of a crust coating on a rock or mineral.
Crust'y (-ȳ) adjective 1. Having the nature of crust; pertaining to a hard covering; as, a crusty coat; a crusty surface or substance. 2. [ Possibly a corruption of cursty . Confer Curst , Curstness .] Having a hard exterior, or a short, roug...
Crusty is slang for ill-tempered. Peevish.
[adj] - brusque and surly and forbidding
curmudgeonly adjective brusque and surly and forbidding; `crusty remarks`; `a crusty old man`; `his curmudgeonly temper`; `gruff manner`; `a gruff reply`
having a crisp or thick crust: a loaf of crusty French bread. · of the nature of or resembling a crust. · harsh; surly; rude: a crusty remark.