Akademik

crabbed
adj.
1 irritable or morose.
2 (of handwriting) ill-formed and hard to decipher.
3 perverse or cross-grained.
4 difficult to understand.
Derivatives:
crabbedly adv. crabbedness n.
Etymology: ME f. CRAB(1), assoc. with CRAB(2)

Useful english dictionary. 2012.