prankishness n the trait of indulging in disreputable pranks Usage(s) In Director William's conception of the comedy, the prankishness and the poetry are divorced instead of being mated. Moore uses a similar mixture of prankishness, populism and deadpan naivete on TV Nation. Classmates who remember Pynchon at all recall a tall, shy young man, occasionally given to bursts of prankishness. Synonym(s) rascality roguishness