The answer to that question, what is the synonym of old?, is worn out. new
old, getting on, grey, ancient, antique, elderly
expired or old
The synonym for granddaughter is "grandchild," which refers to any child of one's son or daughter.
The adjective form of the verb "to age" are the participles: aging or aged. Aged is typically a synonym for elderly or old.
Decayed or decaying. More often decaying, or "in decay."
Fossil is a synonym of old and antique and begins with an F.
old, getting on, grey, ancient, antique, elderly
old fashioned
Elderly or aged
a synonym for eldest is oldest or old because the saying always respect your elders
Old man's beard.
expired or old
ancient, aged, old
old-fashioned
Aged, elderly & senior are all synonyms for old.
unusual, extraordinary, old-fashioned
dated, antiquated, outdated, old