The term mischievous is often used to describe someone who is NAUGHTY, ROGUISH, ELFIN, and pranky. NAUGHTY is defined as disobedient or badly behaved, while ROGUISH implies a mischievous or playful quality. ELFIN is an adjective used to describe someone who is small and delicate, often with a mischievous nature. Pranky is an informal term for someone who is fond of playing practical jokes. All of these words are used to describe someone who is mischievous.