Nina in spanish means baby...It's the slang word a boyfriend might use for his girlfriend. Your words Nina should have the accent ~ above it. like this: niÃ±a. 'Nina' means girl.
Top definition Temperamental unknown A person that can explode at any given moment, one minute everything can be super-duper and their company that of something wonderful and the next they are loathsome.
HOW TEMPERAMENT AFFECTS CHILDREN & PARENTS Temperament is a largely genetically determined set of characteristics that remain unchanged from birth throughout life. Beginning as early as four months of age, a childâs temperament can be determined. These temperamental traits are largely unchanged throughout life.