oldish Definition

old
adj older, elder, oldest, eldest

1. Advanced in age; that has existed for a long time; not young.

Thesaurus: aged, elderly, senior, ancient, antique, classic, ancestral, traditional, having one foot in the grave, old as the hills; Antonym: young, youthful.
2. Having a stated age.

Example: five years old
3. Belonging or relating to the end period of a long life or existence.

Example: old age
4. Old people as a group (see the 4b).

Form: the old
5. Worn out or shabby through long use.

Example: old shoes
Thesaurus: decrepit, worn, used, obsolete, gone to seed; Antonym: fresh, new.
6. No longer in use; out of date; old-fashioned.
7. Belonging to the past.
8. Former or previous; earliest of two or more things.

Example: went back to see their old house
9. Of long standing or long existence.

Example: an old member of the society
10. Familiar, practised or skilled through long experience.

Example: the same old excuses
11. With the characteristics, eg experience, maturity or appearance, of age.

Example: be old beyond one's years
Thesaurus: mature, adult, grown, seasoned, experienced; Antonym: immature.
12. Said of a language: that is the earliest form known or recorded.

Example: Old English
Form: Old
13. colloq, jocular
Used in expressions of familiar affection or contempt, etc.
Example: good old Bill
Example: silly old fool
14. colloq
Used for emphasis.
Example: any old how
15. colloq
Used for emphasis: great; excessive.
Example: rare old time
Form: high old (usually)
Form: rare old

noun

1. An earlier time.

Example: men of old

Derivative: oldish
adj

Idiom: as old as the hills

colloq
Very old.

Idiom: little old

colloq
A familiar affectionate or jocular way of referring to someone or something.

Idiom: of old

Formerly; a long time ago.

Etymology: Anglo-Saxon eald.

Info:

See Usage Note at elder.