old-fashioned
out of date; from or reminiscent of an earlier period
Her taste in clothes is a bit old-fashioned.
oldness
the state or quality of being old
The oldness of the building was evident in its crumbling walls.
oldest
most advanced in age or time; earliest
This is the oldest tree in the park.
old-timer
a person who has been involved in something for a long time; an older person
He's an old-timer at the company and knows all its secrets.
old-school
conventional or traditional in style or approach
My father has an old-school approach to parenting.
old-growth
relating to forests that have developed naturally over a long period without significant disturbance
They walked through the old-growth forest, marveling at the ancient trees.
old-money
wealth that has been inherited over several generations; describing families with long-established wealth
She comes from old-money families and rarely talks about finances.
old-boy
a former male pupil of a school (often used in British contexts)
The old-boys' network arranged a reunion at the club.
oldie
a song, film, or item from an earlier era that remains popular
They played some oldies on the radio all afternoon.
olden
of or belonging to a former time; archaic
Tales of olden days speak of heroes and dragons.