Nostalgic originally meant severe homesickness and referred to a disease. The word first originated as a German derivative of the Greek words "nostos" and "algos."
Nostalgic is an adjective that describes the longing for something in the past or wishing to go back to a sentimental time in one's life.
Synonyms of nostalgic are homesick, sentimental, wistful, yearning or lonely. Related words also include obsessive, unforgettable and recurrent.
Antonyms for nostalgic include words like modern, current, forgetful, pragmatic, idealistic and indifferent.
An example of nostalgic being used is: The smell of lemons made the woman nostalgic for her mother's homemade lemonade.