old

be, feel, look, seem

My grandmother seems old, but she still runs marathons every month.

enough

My daughter is old enough now to stay home alone after school.

be, feel, look, seem, sound

After years of working night shifts, my father began to look old.

become, get, grow

My grandmother became old very suddenly after she retired from teaching.

fairly, quite

My grandfather is fairly old now, but he still enjoys playing tennis every weekend.

extremely, really, terribly, very

My grandmother's house is extremely old, but she refuses to move.

oldest known

The oldest known written language in the world is thought to be ancient Sumerian.

oldest remaining

That ancient oak tree is the oldest remaining landmark in our village.

oldest surviving

The oldest surviving photograph shows a small village from over 150 years ago.

boring/silly old

My uncle keeps telling the same boring old jokes at every family dinner.

dear/good old

My dear old grandmother still tells the same funny stories at every family dinner.

funny old

That's a funny old way to organize your kitchen, but it seems to work for you.

poor old

My poor old dog can barely climb the stairs anymore.

same old

I'm tired of eating the same old pizza every Friday night.

good

My grandmother lived to a good old age and enjoyed her retirement years.

happy

My grandfather enjoys a happy old age surrounded by his grandchildren and favorite hobbies.

lonely

My grandmother worried that she would spend her lonely old years without family nearby.

attain, live to, reach, survive into

My great-grandmother lived to old age and was still sharp at ninety-five.

in (your) ~

She started learning piano in her old age and became quite good at it.

into ~

My grandfather is well into old age but still enjoys gardening every weekend.

the grand/ripe old age of sth

My grandfather finally retired at the grand old age of 70 after working for the same company.