Sir , father ,dad ,mister , senior ,geriatric ...
Senior citizen or senior or elder.
dated
"Ancient" is another word for very old.
ancient
'Ancient' is one, as is 'elderly'.
age-old
Another word for not old is young.
Vexed is a very old fashioned word meaning unhappy or angry. it can also mean cursed or to have a spell on you.
another word for very large
An afternoon out is the hint word for another word for a very special afternoon. An afternoon date is another word for the same.
Another word for 40 year old is 4 decades. 8D
Ancient
Another word for an old female cat is a grimalkin.
Another word for 'very bad' is, "Heinous" (HAY nuss). Another word is, "Dire".