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.
There are two sides to personality, one of which is temperament and the other character. Temperament is a configuration of inclinations, while character is a configuration of habits. Character is disposition, temperament pre-disposition. Thus, for example, foxes are predisposed -- born -- to raid hen houses, beavers to dam up streams, dolphins to affiliate in close-knit schools, and owls to hunt alone in the dark.