adj.
 (crankier, crankiest)
 informal   - Brit. eccentric or strange.
- chiefly N. Amer. ill-tempered; irritable.
- (of a machine) working erratically.
Derivative
  
    - crankily adv.
- crankiness n.
 
  Etymology
  C18 (in the sense ‘sickly, in poor health’): perh. ult. from Du. or Ger. krank ‘sick’.