Saudade is a unique Galician-Portuguese word that has no immediate translation in English. Saudade describes a deep emotional state of nostalgic longing for an absent something or someone that one loves. It often carries a repressed knowledge that the object of longing might never return. It’s related to the feelings of longing, yearning.
Saudade has been described as a “…vague and constant desire for something that does not and probably cannot exist … a turning towards the past or towards the future.“ A stronger form of saudade may be felt towards people and things whose whereabouts are unknown, such as a lost lover, or a family member who has gone missing. It may also be translated as a deep longing or yearning for something that does not exist or is unattainable.
from Wikipedia
