"crankiest" in the adjective sense
1. crank, cranky, tender, tippy
used of boats) inclined to heel over easily under sail
2. cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy
easily irritated or annoyed
"an incorrigibly fractious young man"
"not the least nettlesome of his countrymen"
Source: WordNet® (An amazing lexical database of English)
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