'Cranky' definitions:

Definition of 'cranky'

From: WordNet
adjective
(used of boats) inclined to heel over easily under sail [syn: crank, cranky, tender, tippy]
adjective
Easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen" [syn: cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy]

Definition of 'Cranky'

From: GCIDE
  • Cranky \Crank"y\ (-?), a.
  • 1. Full of spirit; crank. [1913 Webster]
  • 2. Addicted to crotchets and whims; unreasonable in opinions; crotchety. [Colloq.] [1913 Webster]
  • 3. Unsteady; easy to upset; crank. [1913 Webster]

Synonyms of 'cranky'

From: Moby Thesaurus